I don't really get to paint Lord of the Rings stuff very often, but here is a piece that I rather enjoyed.
Not too complex a paintjob, most of the shading and highlighting is in the magmatic recesses of his cracking skin. Overall, it was a pretty fun mini to paint. Sometime, I'd like to try doing a Balrog with a more normal skin tone and none of the magma (just to make him look like a more fleshy demon).