Heat 3 features an array of unique talent, including the youngest and oldest artists in the competition. Celebrity sitters are Gardening Australia's Costa Georgiadis, comedian Celia Pacquola and actor Talijah Blackman-Corowa.

In this heat, nine artists have four hours to create a portrait of a celebrity sitter: Paralympian Madison de Rozario OAM, TV and radio host Amanda Keller, and actor/comedian Matt Okine.