Claude Oscar Monet paintings artwork. Reproduction oil paintings of Claude Oscar Monet. Claude Monet (1840-1926), The Seine and the Sea thus concentrates on an artist who had already produced remarkable pictures in a continuing process of confronting the vagaries of nature and responding to them in a highly personal way in oil on canvas. His paintings looks closely at Monet's considerable achievements as a painter of plein-air landscape. But this goes beyond scrutiny of a major figure within the Impressionist movement.