Who painted " Benefits Supervisor Sleeping " ?
A series of huge nude portraits from the mid-1990s depicted the very large Sue Tilley , or " Big Sue " , some using her job title of " Benefits Supervisor " in the title of the painting , as in his 1995 portrait " Benefits Supervisor Sleeping " , which in May 2008 was sold by Christie 's in New York for $ 33.6 million , setting a world record auction price for a living artist .