I’d love to see animations for hits and misses, aswell as the water moving. This would make it even more impressing. I don’t know though if it’s possible, and maybe you should postpone that idea for KDE4.1. Other than that though, this is already incredible work! The hits need a little bit of improvement though IMO, they look too much like the gimp “explosive” pencil. The “bubbles” of the explosion should be a little different each.
I have to fix something: Robert Wadley did the 3 missing ships (1 is missing on this screenshot). I’m only harmonizing them, and in fact harmonizing artworks from 3 differents people. This is a team work for this game ;)