When the French Royal Academy capped its women members at four, Labille-Guiard answered with this: herself at the easel in a spectacular silk gown, with two of her female students behind her. It's a life-size argument for training women artists.
Shop / Self-Portrait with Two Pupils

Self-Portrait with Two Pupils
Adélaïde Labille-Guiard · The Metropolitan Museum of Art
Adélaïde Labille-Guiard, 1785. The Metropolitan Museum of Art, Open Access (public domain).