You've probably already stated, but is that ship a creation of your own or is it something you downloaded? I think the water needs to be smoothed more, maybe. Maybe that's just the bump height on your texture...it's a little bit too choppy, i think. Unless that's what you're going for..i don't know what you're trying to achieve so i can only say what i'd be doing if it were my image. Good work, look forward to seeing the finished version!