I really think this would have been a stronger image in B&W. However, a little tweaking in levels or curves to bring out the green and the sky would have helped as well.
Has a documentary feel to it. Perhaps a little more space for the boat would have been better. Some nice clouds in the sky but they're washed out. A polarizer would have kept some detail for you there. Image is a little flat - slight boost in contrast would help with that. Also I think it's underexposed some - levels or curves could help bring that back up.