I think that you have taken a really good picture and these are the reasons: - The model herself is really beautiful but the view of her that you have taken with the camera just makes her more mysterious and more hot. - I like how she holds the ball, because it makes her arm get into a really good position. Would have looked not as good if she held the ball with her hand. - The background works really well with her colours.
However, I don't like that the right hand is almost fully hidden. I think it would look better if she used her right hand to hold a whistle near her face, a little to the left. Would make the image of a referee.
yeah her lower body does not fit her upper body, looking at the other pics of her, her legs and bum dont look like they belong to her, here they are small and out of proportion. otherwise great pic. if thats how they really look i probably need to get my eyes checked