Love the subject and the rock, gave it a 5. Might have been a 7 or an 8 if the girl was sitting on the rock looking out, or at least looked like she was there for the picture. This looks like you wanted the picture of the rock, and she was just in the way. It just takes that little bit away from the overall appeal.
The water feels like it's moving to me, it's a very interesting effect. Would like to see the girl placed somewhere other than dead center, possibly farther right in the frame with more water on the left.