I opened this thread with the raised eyebrow look, but I gotta admit, I am in love with that idea! Very original, sounds like a blast.

This is not just creative for the sake of being creative, it sounds like a fun and useful combination. And not so over the top that it would not fit anywhere in with battle mechanics.

Can't really think of anything to add, your painter has a full arsenal as it stands. But a fun idea would be to give him a desperation move, similar to the two hour JA flair from FFXI, something like;

Eraser: erase enemy from existence

haha, great idea you had though, fun stuff