Whelp, it looks like painting and graphic art is going the way of the dodo...
More likely it's going to become another tool to use (and heavily overuse for some time). The arts will be different but people won't stop being creative. The art of making cave paintings didn't really go away - now they are called graffity and are illegal in most modern caves.
Recurse.
Use whatever language generator deemed appropriate* to assign proper titles for the newly-evolved art movement.
*this may be delegated to a meat-computer, in pity.
"Going the way of the dodo..."
Alternatively, equip a human with an EEG headset, let them look at images, and take the rating from the output of the scanner.
So it's going to be perfect for modern art? :D