So this is a thing! http://www.deviantart.com/commissions/
So. Your friendly neighborhood Auntie Toerning is going to step in for a second here. Firstly, I think it's very groovy and awesome that DA is establishing their own marketplace. It's a scary world out there of work for hire and it's totally awesome that DA artists now have this stepping stool to practice professional habits in the same way that we practice artistic skills!
I would like to take a moment to discuss the rates here. I was just exploring quickly, and saw on the navigation on the left "price," and, like every other human on the planet, clicked on the most expensive first, thinking to myself "wow, good for DA to promote work that costs $1,000!" and wanting to see what that work would be.
Well. Boy was I wrong. In fact the prices are organized by Points. Remember when you were a kid, and the dog peed on the Monopoly box, and so you drew dollar signs on