Relatively known for his nostalgic and heart-warming watercolours, Leong has garnered innumerable art collectors all around the world. The full-time artist has participated in numerous group exhibitions locally and abroad since 1995, and was involved in the 2007 “Artist Favourite” exhibition.
Leong is a member of the Malaysian Watercolour Society (MWS), Penang Watercolour Society, Penang Art Society and North Kedah Art Society. His paintings commonly depict everyday life and distinctive buildings in Penang in a nostalgic manner with soft strokes and gentle colours. Leong is also part of the generation of Penang watercolour artists who continues the legacy of distinguished artists such Tan Choon Ghee.