I know this was posted a long time ago, but I just read it... and simply had to comment on it. cahemmy123 thinks that your drawing is actually a ripoff of some CG image or something. He thinks you took that CG and made it look like line art using photoshop filters. It's a well known process (it's easy to do too).
I know you drew it yourself, but I have to wonder... did you use any 3D references at all? I've seen your 3D stuff, you definitely know your way around 3D art. I'm only asking out of pure curiosity. Personally, I think the drawing is aweseome either way.