The sun is heavily burned out, not surprising as there are cloud banks in front of it. This results in a large area being washed out and concomitantly detracting from the overall impact. Perhaps the scene contrasts were excessive and some kind of HDR or combining separate images to combat the dynamic range would be required.
The silhouettes of the boats would make stronger impact if the boats were rendered larger, and more attention paid to their positions inside the frame.
And so it goes. One has to work with the elements at hand in order to arrive at a final satisfactory product.
