More likely research question as the last is putting me up a creek:

Why is the prostitue ubiquitous in the art of 19th century French Impressionism?
-Not only because of her pressence as a socai phenomenon but, more importantly, because of her function in stimulating artistic strategies to controll and dispel her fantasmic threat to male mastery.

"There is, in this idea of prostitution, a point of intersection so complex- lust, bitterness, the void of human relations, the frenzy of muscles and the sound of gold - that looking into it makes you dizzy; and you learn so many things! And you dream so well of love!" -Flaubert