Nine artists have 4 hours to create portraits of Drag Queen Courtney Act, Actor Mark Coles Smith and film critic Margaret Pomeranz, each with a personal item. The judges select a top 3, and 1 advances to the semi-final.

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.

This heat features nine artists from across the country. The sitters are comedian Rhys Nicholson, chef Adam Liaw, and radio/TV host Myf Warhurst.

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.

In the final heat, nine artists from across Australia have just four hours to create portraits of Muster Dogs season 1 winner Frank Finger and his dog Annie, actor Chloe Hayden and comedian Alex Lee.

The pressure is on as the winners of our heats are joined by a wildcard chosen by our judges. Seven talented artists return for the semi-final, each given 4 hours to capture the likeness and spirit of Dr. Karl Kruszelnicki.