Tine Mueller
MGestTherapy, MEdSc (Pedagogy), BSW, BEdSc (Pedagogy), AMHSW
Managing Director, Year 1 Coordinator
Tine is deeply committed to the GTB learning community and believes that GTB`s education can transform students` lives and ripple into the world. She enjoys exploring the rich facets of life and being with others. Tine has three young children.
Tine migrated from Germany to Australia after completing her education in Hamburg and extensive travels. She received her Gestalt Therapy training at the Brisbane Gestalt Institute and her Master of Gestalt Therapy at Gestalt Therapy Brisbane.
Tine has a background in social work. Her work experience includes working with women who experience domestic violence in Arnhem Land, drug and alcohol counselling, working with women and children who have experienced sexual abuse as well as counselling women in prison.
Tine also runs a private practice. She works with individuals, couples and families.
Dr Jeff Flatt
PhD
Education Manager
Dr Jeff Flatt is an experienced tertiary education manager with twenty years` experience in higher education across a rich variety of peoples, cultures, and socio-demographics.
Jeff has a PhD in health science and an interest in working professionals’ integration of praxis with knowledge pluralism and the ways this interface can inform learning to facilitate human fulfillment.
Jeff is a member of the Association for Tertiary Education Management and collaboratively works with staff and students to create positive institutional and learner outcomes.
Jeff joined GTB in 2021.
Sharon Gray
MGestTherapy, MEd (Adult), BTh, MGANZ, PACFA Reg. Clinical, PACFA Accredited Supervisor
Head of Teaching, Learning & Student Experience
Year 2 Coordinator, Literature Review Coordinator
Recognising the interconnectedness of all life Sharon is passionate about working for transformation, equity and sustainability for all.
She loves contemplating situations and ideas deeply, critically, creatively and in the fullness of their nuanced complexity. Her roles as mother, friend, community member, therapist, supervisor, educator, consultant and facilitator ground her with the breadth, depth, tears, laughter and wisdom she brings to her work. She has a Bachelor degree in Theology and Ministry and Master degrees in Education and Counselling. Her career includes outdoor education, pastoral care, school and tertiary education and senior management.
Sharon has been a part of GTB since 2010.
Office Staff
Karen Semitecolos
Administration Manager
Karen Semitecolos is a highly accomplished professional with a diverse range of skills and expertise. With a background in finance, supply chain, hospitality, and education, she has made significant contributions to multiple companies throughout her career.
Outside of her professional life, Karen enjoys spending quality time with her family and friends. She pursues hobbies such as riding, reading, and resorting, which help her maintain a well-rounded and balanced lifestyle.
Josephine Calman
MGestTherapy, AdvDipAT, DipFA
Library Support
Josephine provides support for the function of the GTB library on a part time basis. Josephine is a GTB graduate and has a background in Fine Arts. When she is not hiding behind piles of books at GTB, she like to engage creatively into her Gestalt & Art Therapy.
Josephine has been a part of GTB staff since 2017.
Academic Staff
The Director is supported by academic staff who provide support for the delivery of our Graduate Certificate in Gestalt Therapy and Master of Gestalt Therapy programs which may include teaching, supervision of practice, writing support and grading of written or practical work. GTB also invite local and international guest presenters to support and deliver specialised topics over the education programs.
Rosemary Bower
MGestTherapy, MGANZ, PACFA Reg. Clinical
Year 1 Coordinator
Rosemary was born in Tanzania and has lived and travelled extensively overseas. This lifestyle has greatly influenced and shaped her style of working and being in the world. She graduated from Brisbane Gestalt Institute and completed her Master of Gestalt Therapy at Gestalt Therapy Brisbane.
Rosemary now lives in Maleny and has a great passion for working with culturally diverse groups and with groups engaged in creating social change. She is a founding member of W2M Refugee Support Group and has facilitated group processes for several community groups such as Maleny Pride, land care groups and educational institutions. She facilitates for EPICC, exploring anxiety and life issues with individuals who are non-verbal and have special needs. Rosemary wrote and taught several modules at Quest College Maroochydore’s counselling program for 10 years.
Rosemary recently developed and taught clinical communications skills programs in Taiwan. This work continues in the form of group supervision. She has worked with communities decimated by HIV/AIDS in Tanzania and currently works with local NGO’s in Nigeria to develop and facilitate programs to assist women recovering from human trafficking.
Rosemary has been in private practice for over 25 years and works with individuals, couples, groups and as a supervisor.
Rosemary has been a part of GTB staff since the beginning of 2018.
Dr Leanne O’Shea
DPsych, BTheol., MS, FMGANZ
Year 3 Coordinator
Leanne is a psychotherapist and supervisor in private practice in Melbourne. She studied the Gestalt approach in Melbourne and London, and more recently the relational approach to Gestalt Therapy at the Pacific Gestalt Institute (USA). Leanne is interested in creating greater awareness of and sensitivity to our relational responsibility and is particularly passionate about the place of sexuality and the erotic within the therapeutic relationship. She is well published and is an inaugural co-editor of the new Gestalt Journal of Australia and New Zealand. Leanne has served as a member of the GANZ Council, including the Presidency, and chairing the GANZ Ethics Committee.
Leanne rejoined GTB in 2021.
Lisa Toman
MGestTherapy
Year 4 Coordinator
For as long as she remembers, Lisa Toman has been deeply connected to the natural world, drawn to its ability to nurture, heal, and transform. She is fascinated by the interconnectedness of all living things – how our relationships with nature, animals, art, and each other shape our physical, emotional, and spiritual well-being.
Lisa brings over 20 years of experience in psychotherapy and personal transformation, weaving together a diverse background in Gestalt Psychotherapy, Equine Assisted Psychotherapy, outdoor Leadership, Mindfulness, Embodied Awareness, and Creative & Expressive Art Therapy.
She is particularly passionate about the healing power of nature and expanding the relational field to include the more than human world, integrating nature, animals, and all living beings to support trauma recovery and personal growth.
Lisa joined GTB in 2025.
Michael Pitt
DipTeaching, MA GestTherapy, Member of PACFA/GANZ.
Educator
Michael initially trained as a Primary School Teacher and then spent 20 odd years as an IT professional. In 2003 he chose to loosen the tie and explore what might lay beneath, by starting his gestalt training at Brisbane Gestalt Institute. There he fell in love with Gestalt as a therapeutic modality and way of life. In 2013 he completed his Master of Gestalt Therapy at GTB.
He has had experience working in private practice offering individual and couple therapy, mediation and clinical supervision. He has also worked for a number of NGO’s facilitating rites of passage programs for adolescent boys, groups for men with a focus on relationships, anger management, communication, and loss and grief, and for NSW govt. facilitating restorative justice conferences for young offenders and victims.
Michael currently works for Interrelate as a relationship counsellor and group facilitator.
Michael has been a part of GTB staff since 2010.
Justine Brown
MGestTherapy
Educator in Training
Justine grew up in Zimbabwe and has lived and travelled in many parts of Australia and overseas. She brings a broad range of experiences and interests into her work and life.
Justine’s love of nature, animals and people have led her to value the support, belonging, connection and wisdom we bring to each other. She is passionate about supporting others to feel empowered and at home within themselves as they discover their own unique gifts. Her background includes Counselling, Health, Bodywork, Refugee Work, Expressive Art and Disability Coordination.
Justine is at home being immersed in the wisdom of the natural world. Whether it’s camping in wild places, walking in the rainforest close to her house or being a part of activism centred around caring for our Earth.
She has a private practice in Buderim with two horses where she also practices equine assisted therapy.
Justine joined GTB in 2024.
Jack Tully
MGestTherapy, BArts/BEd, Member of PACFA/GANZ
Educator in Training
Jack is a psychotherapist and educator based in the Northern Rivers. He works with individuals and couples in private practice, while also supporting young people in education settings.
With 20 years of experience as an educator, Jack has a deep appreciation for how relationships shape our well-being. He holds a background in Education (BA/BEd) and a Master’s in Gestalt Therapy (M Gest Therapy), with a focus on healing developmental trauma through relationships. He has completed further specialized studies in relationship counselling and the treatment of trauma.
Jack is also a father, partner, accredited surfing instructor, and musician. He values connection, presence, and the simple things that bring meaning to life. He finds great support in the ocean, playing guitar, and of course, a good cup of tea.
Esperanza Egan
MGestTherapy, MFMH, MAC
Academic Support
Esperanza started her psychotherapy practice in 2007 attending to the mental health needs of asylum seekers and new immigrants who found themselves in detention. Through their experiences, the people she worked with taught her to sit with despair and realise the hidden human potential for growth. In 2010 Esperanza became a faculty member of the Sydney Gestalt Institute as Year 3 facilitator and student clinic coordinator.
Esperanza is drawn towards the transformational power of working through conflict, grief, loss, trauma, anxiety, depression, domestic violence and addictions. Esperanza works as an individual and couple’s therapist; she runs therapy groups and is a qualified Clinical Supervisor.
Alex Greene
MGestTherapy, GDipPLEAT, BA Criminology and Criminal Justice
Educator in Training, Academic Support
Alex is a former lawyer turned gestalt therapist with a wide range of life experiences. She started her professional career as a legal officer working for the Queensland Police Service, the Australian Classification Board, the Commission for Children and Young people and the QLD Parole Board.
Alex discovered gestalt therapy in 2019 and found an instant connection to its rich philosophy, profound theory and field-sensitive practice. She enjoys engaging in interdisciplinary and transdisciplinary research, constellating ideas across multiple fields and is especially passionate about critically reflective practice. Alex currently works as a staff counsellor at a special assistance school for young people who do not fit the mould of mainstream education and runs a private psychotherapy practice from her home on Russell Island. Her broad personal and professional interests are varied and include spirituality, existentialism, ethics and the depth of mystery that dwells at the edges of our human awareness.
Alex joined GTB in 2025
Tracy Santos
MA GestTherapy, BASocWork
Adjunct Educator
Tracy Santos is a gestalt psychotherapist, mental health social worker and educator who has been working as a clinician in private practice for over 20 years. She is on faculty at Gestalt Therapy Brisbane and has taught for many years at Southern Cross University on the topics of grief and trauma informed practice in the human services.
Tracy has specialised in the field of death and dying, grief and bereavement for the last 17 years, working with individuals and couples, as a trainer and supervisor to other clinicians. She has been closely affiliated with the Amitayus Home Hospice Service in the Byron Shire since 2003 and is on their training committee and team. Tracy has a fervent interest in educating people from the community and in professional roles to cultivate death awareness, compassionately care for the dying and be informed and practiced in how to work with those experiencing significant grief.
Angela Shaw
BCouns, MGestTherapy, PACFA Reg. Clinical, Member of GANZ, ISCA
Staff Mentor
Angela’s adventuring spirit and wide range of interests influence both her approach to life and her therapeutic work. With a background as a retail pharmacist, Angela entered into the Gestalt world with GAQI in 1991. For many years she lived and worked in the Wide Bay area in a variety of community situations including private practice, Lifeline, Palliative Care, Vietnam Veterans & Sexual Assault. Angela has a small private practice, including individual and group supervision and she incorporates Family Constellation work, having accessed training in Australia & Europe. She finds these concepts provide a useful medium for revealing larger system dynamics and supporting individuals & students to find a stronger sense of their place, in their family system, with clients and life in general.
Angela has been a part of GTB staff since 2012.