How we cite our quotes: All quotations are from Batman.
Quote #7
JOKER: She's just a sketch, really. […] You see, Miss Vale, Alicia's been made over in line with my new philosophy. So now, like me... she is a living work of art. I'm no Picasso, but do you like it?
Joker's strategy for validating his own appearance as attractive is to make attractive women, like models, look like him. If models are pretty, and models look like Joker, then Joker must be pretty. It's like the world's most twisted SAT question.