Portrait of Eva Gonzalès, 1869-1870, by Édouard Manet. The painting she is shown completing here demonstrates the mastery she had achieved at that age. However, this depiction of Gonzalès is less than flattering in that her dress, her posture and technique are not actually those of a professional to painting. The painting that Gonzalès is working on is not her own, but actually one of Manet's.
[https://en.wikipedia.org/wiki/Eva_Gonzal%C3%A8s#/media/File:Edouard_Manet_041.jpg]