Interesting shot. My only comment would be that it would be interesting to shoot this in portrait mode and concentrate on the lit ship. Portrait mode would give you a bit more space for the lights and the reflections at the top and bottom of the image. As it stands now, the reflection is a bit to close to the bottom of the image. Also, a portrait mode would get rid of a lot of the other boats, which, in my opinion, do not serve a useful purpose in this image. Remember that the best images are those that are as simple as possible without losing any aspect of the subject.
WesternGuy