Your composition is almost flawless, the tree on the left is slightly distracting but that's about it. One of the flares, the one coming down on the boat, is a bit distracting.
I think your photograph has great potential, but there is one thing that just devastates this photograph for me. That typical, oversaturated, wonderfully terrible HDR. A huge cutback on the saturation would do this photograph a lot of good, and perhaps a manual blending instead of a Photomatix-automatic blending, which it looks like, sorry if I'm wrong. Looking at your other photographs, though, indicates you don't do way too many HDRs like this, I must say your other photographs look way better!