Kellie's work is focused on the natural environment. Aerial perspectives are a growing focus, where the subject's spatial relationship with its environment is used to extract dynamic compositions. A parallel theme is the exploration of repetitive patterns and textural motifs found in landscapes.

Kellie has pursued a career that contributes to conserving nature as well as placing her in the ideal environment to explore and develop her art. From 1997 to 2007 she founded a long-term conservation organisation in Africa (see website www.awdczambia.org) and gained a PhD in conservation biology from the University of Sydney. Alongside conservation work, Kellie has held highly successful solo exhibitions in Sydney, completed several painting commissions each year and her work hangs in private collections internationally.