Xia Kui (Chinese, 15th century), Watching the Waterfall, Ming dynasty (1368–1644), 15th century. Hanging scroll; ink and slight color on silk, 195.6 × 101.6 cm. Insription: Painted by Xia Kui of Qiantang. Seals of the artist. R. A. Waller Fund (1924.1046) © Art Institute of Chicago