Upload & Sell: Off
I think its a great idea.
I'd suggest that in order to participate, all photographers should remain nameless.
I like the idea, but I think that if we're trying to get as many orders as possible it might be better to say who took it. For example, if John Doe submits and image and shares the gallery with his friends/family, they'd probably want to be able to see which is his as it would be more meaningful to them to have one of his images. I dunno, does that make sense?