Arnold describes his evocative nocturnal scene of the cenotaph at Devonport in Tasmania as his legacy to future generations.
He says it attempts to draw a bond between normal modern life and the hard reality of war.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
The Gallipoli Art Prize, which started in 2006, is intended as a
commemoration of war.
It's open to artists from Australia, New Zealand and Turkey.
"It pays homage to those who stood up to defend their country when they were called," competition judge John McDonald said at the announcement in Sydney on Tuesday.

