I've been tweaking this old one... was never really 100% happy with it. Desaturated a lot of things, changed the ocean color a little, added some haze/mist over the water, plus a bunch of other really small tweaks.
Here's a quick matte painting I did for fun. Well, quick by matte painting standards anyway. It's not real hi-res or anything, and a little more grainy than I would have liked. Still looks like a nice place to visit though.