Kei Shibusawa ( 1949 - 2012 ) was a Japanese painter, known for landscape painting. Kei Shibusawa s works have been put up for auction numerous times, with realized prices greatly surpassing estimated prices, varying from 332.7 USD for Autumn wind in 2010 to a remarkable record 13071.9 USD for Spring after the rain in 2010 , based on the size and medium of the artwork.