Returning to Australia he undertook postgraduate studies in Education while exhibiting his artwork at Galleries in Sydney and Canberra. He holds two Master’s degrees, a PhD from Sydney University, and has taught in the Secondary and Higher Education sectors. He has a research background in Fine Arts, Aesthetics and Philosophy and his writings are published in respected scholarly journals internationally.
Derek is a Trustee of the Kedumba Drawing Award and has a drawing in the Kedumba Collection, having been selected in 2009. His artwork is represented in private collections in Australia, UK and Malaysia.