Brett Whiteley ( 1939 - 1992 ) was an Australian Avant-garde painter. Brett Whiteley s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3322.26 USD for TWO BLOKES in 2004 to a remarkable record 3492178.97 USD for OPERA HOUSE in 2007 , based on the size and medium of the artwork.