Young girl in a ball gown by Morisot

Tuesdays with Berthe Morisot!

What has always fascinated me about this image is how timeless she looks -- or perhaps ageless? The title describes her as a young "girl" abut couldn't she also be described as a young "woman"?

Anyway, I can't get it out of my head that I've seen her somewhere before. . .

Musée d'Orsay, Paris, France, 1872