Thought I'd show some samples of the quick and dirty work you sometimes have to produce when working in the production of video games. It's not always about the nice renderings or the lovely mood paintings. Sometimes the AD will just show up and ask you for a quick sketch over 3D geometry or a quick design for a prop. So you may just have a couple of hours or an afternoon to ship it.
These are some examples of that kind of work I did for Halo. They are not the nicest rendered pieces, but they are enough to show what the idea is and where it could go from there.