‘Study of a Male Nude supporting his head on his left arm‘, John Constable, c.1808 https://www.tate.org.uk/art/artworks/constable-study-of-a-male-nude-supporting-his-head-on-his-left-arm-l02968
Male Nude Seated Cross-legged on Rocks, with His Chin in his Hand; a Study of an Arm