Original. I like those asteroids. They look like they're made of metal or ice. The reflection, contrast and sharpness is really neatly done! The ship is also well blended into the picture and the planet's darkness with some lines of light make it different from most planets you see in other space art.
I never got far with 3D, I did a few simple models that I then painted over in Photoshop but mostly a lot of my earlier work, I will still create a simple box model of a scene if the perspective is annoying me too much.