As people have alluded to it should set alarm bells off when she's asking for a pic...shouldn't matter in the slightest what the punter looks like.
Although as a generalisation I've noticed that some EE WG have mentioned that they don't/would never see black men or mixed race...maybe in her mind it's a way to see the race of the punter?
Anyway if you do go through with it, you should send a pic of a similiar looking bloke you can pass as, much like they do on any vivastreet ads. The chances are her photos aren't accurate either!