ah, ok ^u^
that makes a bit more sense

are we supposed to write the description on a skin, or in comments or something?

Maybe look at this skin see if it helps?
https://www.minecraftskins.com/skin/22081028/*---skindex-writers-club---*--i-have-an-idea-for-a-type-of-peer-assesment--o-/

If u still don't understand ill try explain better ill use u as an example.
So basically since you chose A you will write a descp abt one of ur characters in your story and send it to me and I will make a skin for it. Then other people who chose b/both will make a skin based on how they imagine that character. Then if ur not happy w how they imagined it you can try edit your piece of writing and send it back to me and I will make a new skin w the descp. Then ppl will try do another version of how they imagine it.
Hopes this helps <3

I'll sign up for A I guess
(Im not sure if I get exactly what we're doing xD)