Reference(?) of NIMH Muck Umbra. Unfortunately the angle at which I drew him doesn't show off his armor/clothes as well as I would have hoped. A large portion of his attire is asymmetrical, such as his tunic, pauldron, and upper-arm bracer thing (which can be seen here: http://www.furaffinity.net/view/17117548/), and I'm slightly disappointed that I didn't show that off in this picture because it gives his clothes a bit more personality.
Notes:
-He has a dagger concealed behind his upper-arm bracer for emergencies.
-His ears are longer/more pointed than most rats due to his prolonged stay in the NIMH facility (likely as a result of some failed test).
-His needles are named Phobos and Demos.

Umbra's personality isn't very well developed at the moment since I haven't done any RPing with him yet, and likely won't until the MUCK's reboot. I have a vague idea of what direction I want his character to go, and a rough outline of persona, but there's a lot that has yet to be determined. I'll try to release more information on him as I develop him further (mainly for my own benefit, since I doubt more than five or six people will be reading this :P).