Yes it is suitable for artists! You can complete a fill however you like. What I love about it is that it works alongside other fests etc. so you might be writing a fic on that theme anyway and you can cross off a square on your bingo while you do.

You just sign up here, all you need to do is ask for a card! But beforehand you can read the lists of prompts for any triggers and you can veto up to three that you don't want on your card