I think your description of her was spot on: cute. She is quite cute. She has an almost wholesome look about her. That's the angle that I would try to play up if she gets a site set up.
She's got very nice legs, nice complexion, sweet smile, seemingly nice boobs (implants?) and nice hair. In the last set of pics you posted, her butt looks more roundish. But in one of the earlier ones, I thought it looked pretty flat. Is that her or is it the pose or the camera giving an illusion? Hard to say. I know these are just amateur pics for now. But the first thing she REALLY needs is a good photographer with a better camera.
Give her a name like "Cute Cassie" or something. Who knows, she might do very well. Oh yeah, and if she was posing beside a car, I'd give her a double thumbs up.