$10 for shaded pics - about like this: http://www.furaffinity.net/view/8927078/ though you can choose a more realistic anatomy if you want

Also thinking about video game commissions. Mostly custom platformers. You would get your own character sprite, a few different types of enemies for you to bonk on the head, and a large first level with custom music and theme. The first level would probably cost around $60, and subsequent levels, if the same assets were used, would be about $15-$20. Just an idea, seeing if there would be interest in something like that.