Did you have a fish in your other hand? :) I like the angle, setting and BG and would try to get more details in the shadows and give it a bit more room at the bottom.
Really impressive low angle. I would like to see a little more canvas at the bottom and a tad more light on the back. The sky is a wonderful bonus in this one.
Pointing the lens lower more would have been your best bet...assuming that didn't mean plunging it in the water!! Great in-your-face perspective...well seen.
I like the wide angle in-your-face look here. You could lose a finger to this guy! I would agree with the previous comments. Also, the image looks underexposed on my monitor.