Karel Zijlstra ( 1958 - ) is a Dutch painter. Karel Zijlstra s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1234.93 USD for Paar Massaï figuren; man- en vrouw in 2005 to 2011.91 USD for Hywell in 2014 , based on the size and medium of the artwork.