Head should be either staight or tilted in the other direction, and should have had better lighting coming in from the right. That shadow of her arm is a little distracting. The pose is pretty akward. With her hand on her hip like that it looks to me like she needs a restroom break. As far as PP goes, just saturate the colors a little bit, smooth the skin and then sharpen the eyes.
With all that being said, this is NOT a bad picture, it is a good shot! I'm just being picky and all of that is just my opinion anyways.