A mid-twenties, petite Caucasian female with short hair, either auburn or medium brown, really enormous blue eyes, and a lean, fairly flat-chested build. Bonus points for a high forehead and delicate features, and for someone who looks like she could maybe be related to Sarah Slean.
The overall look I'm going for is sort of a Type A alpha!pixie, haha, so I need someone who looks like she wouldn't be totally out of place with a book or dominating a boardroom, but who is still feminine and sort of physically fragile.