2015
National Gallery of Art, 1602
National Gallery of Art, 1934
National Gallery of Art, 1997
National Gallery of Art, 1955
National Gallery of Art, 1701
National Gallery of Art, 1905
National Gallery of Art, 1868
National Gallery of Art, 1940
National Gallery of Art, 1523
National Gallery of Art, 2020
National Gallery of Art, 1932
![Green Angel 2 [1st element proof]](https://api.nga.gov/iiif/bccf651f-79d3-4b98-b5f3-10166b3b9570/full/843,/0/default.jpg)
![Study for "Variations in Blue and Green" [verso]](https://api.nga.gov/iiif/42985929-b738-4c6f-a589-9238ba829696/full/843,/0/default.jpg)
