Graham McKean ( 1962 - ) is a British painter. Graham McKean s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 431.28 USD for THE RED UMBRELLA in 2007 to 2952.76 USD for Oor Wullie, Your Wullie, A Holiday Wullie in 2011 , based on the size and medium of the artwork.