The New York Observer’s crack observer Drew Grant looks at what goes on behind the scenes at Fashion Week in a cover story today–and it isn’t a pretty picture. Readers of Model: The Ugly Business of Beautiful Women already knew that, but this regular reminder was inspired by a new documentary, Girl Model, and Sara Ziff‘s Model Alliance, which, I fret towards the end of the piece, will be another Quixotic attempt at reform in the frontier trade in genetic lottery winners. (Jason Seiler‘s impression of Alliance-supporter and 90′s supe Shalom Harlow, at right, is snatched from