Upon reviewing it again on a better computer, her dress is exposed fine (as I suspected). However, this edit really ruins it for me. She is well lit and bright, well exposed, etc.... however the ground all around her isn't. If this was lit properly to get the same result (could have been done) then the area around her feet should be better lit and there would be a shadow of her on the ground which would have helped by adding depth. As it sits now it looks as if she was photoshopped in (whether she was or not) and I would lighten the foreground/background area (maybe try a graduated filter in your editor) to make her not stand out so bad.