Beautiful shot in all respects. (Thanks for the higher res...:D) To me, the lighting and compositon are both better than in the first picture of this scene. I believe that the "off centered" that you mentioned is actually what adds so much to this photo's appeal.
Excellent capture! Much nicer with the light reflecting off the beach. The off centering that you have accomplished is what is actually preferred in the pros eyes. The same holds true if you are photographing an object or person...called the rule of thirds where the object is placed at the intersection of the lines that would divide the image into thirds. Thanks for sharing:-)