Ok, my two cents; it’s ok, not really all that great but not really bad. I think you could have helped out the overall shot initially by opening up your aperture, it’s just got too much depth of field for me. But, that’s in the past… Now what can you do? I’d get rid of the rock, it serves no purpose – it’s not important to the subject and doesn’t act as an anchor point to the composition; get rid of it. The water line seems a bit off as well, I can’t tell if your horizon line isn’t straight or if it’s just an illusion. I’m not being an ass, but are you familiar with graduated filters or how to mimic it in photoshop? If so try that from the top down… maybe isolate the subject a bit more… awwww, I gotta go… best of luck!