約翰·康斯特勃 Cloud Study 年份 ca. 1821-22 媒材 oil on paper marouflaged on canvas 尺寸 27.5 x 32.7 cm 現藏於 The Clark Art Institute, Williamstown 年份 ca. 1821-22 媒材 oil on paper marouflaged on canvas 尺寸 27.5 x 32.7 cm 現藏於 The Clark Art Institute, Williamstown
