Adelaide-born, Melbourne-based artist Sam Leach has become only the third artist to win both the Archibald and Wynne Prizes in the same year.  The previous artists to achieve this feat were Sir William Dobell in 1948 and Brett Whiteley (who also won the Sulman) in 1978.  Leach's diminutive oil and resin on wood portrait of comedian-singer Tim Minchin won the $50,000 Archibald Prize, while his Proposal for landscape cosmos took out the $25,000 Wynne.