Very nice, mostly due to the pose: it's dynamic and attention drawing, as it fills up the page. However, if you drew a background to it (I don't know, maybe a street scene, or maybe she is sliding down a rail or something--that's the vibe I get), it would be worth posting in the main gallery. I'd say go with something that contrasts, like maybe a slanted background, but one that is slanting the other way from her.