I would love to give you some C & C but I think you did a great job. I love the framing. And when doing anything like this as related to the sun setting or free floating clouds, (of which you have both) time is of the essence and their is no time to mess around.
The only thing I wish is that the boat was not so centered. I agree that the size of the boat does the image justice. I can't find you at fault for where the boat was though as to place the boat in a different location would have in my opinion thrown off the hole frame, clouds, water, and such.
Again Bravo. I think having the sun not being cooperative worked out very nicely indeed!