Zheng Guogu ( 1970 - ) is a Chinese painter. Zheng Guogu s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 28800 USD for Embroidering for Another Two Thousand Years #11 in 2006 to 34375 USD for COMPUTER CONTROLLED BY PIG'S BRAIN - 57 in 2008 , based on the size and medium of the artwork.