Well...it really depends. If the request requires renders which I either 1) don't have time to cut out 2) can't cut out nice, I go to Planet Renders.
But, my last sig, Sev and Boba Fett, I rendered myself. Some things are better when you do them yourself
If you are asking where I'm getting my actual characters
, then I can proudly say DeviantArt. Best artists, this side of the galaxy