It seems like a common enough idea that it may have been done, but I skimmed through the SCPs tagged with "artistic" and didn't find anything like this ("skimmed" is the key word there). So assuming I'm not retreading old ground, here's what I've got.
There's an image that, when painted in a certain way upon an existing work of art, makes those who view it want to create art of their own. The effects come in two forms, however. First, if you have no skill, you're just a propagator. You try to recreate the image until you get it right, then the effect wears off. Second, if you have artistic talent, you're driven to create original works. In a lot of cases, these are going to turn out kinda crazy. Maybe they'll start off fairly normal, but by the end you'll be doing really weird or violent or dangerous things. Most people in the second category will die before they recreate the image, since they've got too much creativity to simply reproduce it properly.
And no, this isn't going to be an AWCY article.