EDIT: I guess OP changed the topic so this reply is no longer relevant to the thread
We constantly see writers looking for artist to work for free but like maybe they don't know any better because they're not artist themselves. You're an artist though, you know how much time and effort goes into colouring (and the comic making process in general) and you know how important is it for artist to get payed, it's something we've been trying to push in this community.
I'm not trying to be mean or anything and I don't know your situation, I just hate seeing so many people trying to get artist to work for free, it's incredibly unfair they're probably students like you or freelancers who have to pay the bills. Free work is never something that helps the artist in the long run even if they do it for practice.