His art is influenced by his views about the world; for instance, much of his art deals with peace and people’s struggles in achieving peace. Lately Leslie is interested in the connection between western notions of sub-atomic physics and eastern philosophies such as Taoism and Buddhism. His latest pieces are reflecting this influence.

Leslie’s exhibition record dates back to the early 1970’s and includes numerous group and solo exhibitions. His art is in a number of private and public collections.