Lygia Clark ( 1920 - 1988 ) was a Brazilian Neo-Concrete Movement painter, known for her painting and installation work. Lygia Clark s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 65725 USD for Bicho in 2003 to a remarkable record 1865000 USD for Bicho invertebrado in 2013 , based on the size and medium of the artwork.