@xyfdi That depends. Some want creative freedom and some want detailed description. If you commission some on fedi or twitter, it's highly likely they will ask additional questions.
I used https://skeb.jp because I had trouble looking for some English speaking artist, but since I can't speak Japanese I tried to be simple so that the MT could translate it well. I ran my commissions ENG->JP->ENG to see if they still made sense after that. Skeb also has a policy of "take what you get" so no revisions, even minor.
Sure, my commissions are public (https://skeb.jp/@matrix07012)