Charles Demuth, Amaryllis, c. 1923, watercolor over graphite, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/172894

Edgar Degas, Diego Martelli, 1879, charcoal and white chalk, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/130528

Edgar Degas, Sheet of Studies and Sketches, 1858, graphite, pen and dark brown ink, and watercolor on thick ivory wove paper, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/128808