Zhang Hongtu ( 1943 - ) is a Chinese painter. Zhang Hongtu s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 38400 USD for SIX MAO, FROM MATERIAL MAO SERIES in 2006 to 78000 USD for FAN KUAN - VAN GOGH in 2007 , based on the size and medium of the artwork.