I loved finding this image early on—Jeanette and Cousin Effie! Or, no, what fun: Mary Cassatt and her sister Lydia posing for Edgar Degas, who reworked this basic composition in several media. (Besides this version, see also, for example, an etching
and a study
On her first visit to the Louvre, Jeanette is humbled by the glories she encounters; but on later visits a part of her would want to strike a pose of confident, nonchalant connoisseurship. Effie would forever bury her nose dutifully in a guidebook.