I saw the guy with his spaceship over on the RPGnet forums earlier; I love it. It sort of suggested "Han Solo" to me, if only because of the shape of the ship. I also loved how it combined traditional and digital techniques to create something you couldn't really create with either alone (the water spots come from reality, the utterly smooth gradation that dominates the picture comes from the digital world. Great fusion of the two!)
I've been toying with doing a space opera campaign, though certainly not anytime recently. I think this one captures the feel of the genre very well. (Hell, it's my wallpaper right now.) Thanks for letting us all in on your sketches! I'm really digging it.