Did a thing for a character of mine in a soon-to-be campaign. He's a slightly brain-damaged alchemist snake man, brain got bonked by something undecided and it gave him a form of synesthesia for experiencing almost every sense as color.

Now he's infatuated with it, and painting.

Edit: for context, he's an Alchemist, and has the Divine Inks discoveries, so he creates paintings in the air via minor illusions, on top of other things.