I think it looks just cool. I'm not an expert on computer generated images, so I can't give more any additional tips or suggestions - just one thing irritated me a bit, namely the golden glow of the sun and the silver reflections on the water. But maybe this is just what makes the image more interesting? Anyway, I like it very much.
I like this one very much. One small criticism though - surely the curvature of the Earth should have been allowed for where the horizon meets the sea. In real life there would be a slight curve on the horizon with either end being lower than the middle. Nice job though :-)