The information I'd ask for would be:
- The characters they want me to draw, and how many (proper refsheets included),
- Which characters of mine they want to draw in return,
- The kind of picture they would make (examples appreciated).
Last time I opened art trades, a glorious 50% of all comments did it wrong, and it was a pain to ask for people to actually read what I typed. Same thing with other things I organize or journals, people just. Don't. Bother. To. Read.
Thing is, I want to know what I will have to draw and get in return before I'd accept the trade, and people still commented with "I'll tell you what I want as soon as you accept!" NO???