I would a agree with the above however, I think you would of had to much boat landing\land. This a very good photo. Here is an idea, if you feel like experimenting try using your sunglasses for the polarize aspect. I know it sounds retarded but who knows it may help you. Unless of course your sunglass lens is to small then that idea will not work.
Very beautiful picture! The greens and blues are so vivid. I like the boat right at the edge of the photo. The only thing that would make it better in my opinion is some nice puffy clouds...but you can't do much about that can you? :) Great shot Milka.