Not quite as fancy as you all's work (especially yours, Rimmer, cripes that's fantastic), but something I've been working on for a few days now:
This was something I had put together a looooong while ago, and found lying around a couple days ago. I added the lighting, then started working on the rivets, had to fix the lighting, and then some weathering etc... Still working on the metal though, and the light. And the oil stains. And some of the shadows.