It's been established that art history and art appreciation, including "history" of current/living artists, is out of scope for this stack. Instead, we're focused primarily on the making of art, the doing.
In recent history (past 6 months or less) we've had a few closures for this reason:
Who is the person in this artwork?
Casson's 'Little Island' and Bocklin's 'Island of the Dead'
Why is this painting with Link from Ocarina of Time funny or ironic?
There have been more throughout the stack's history. While this isn't a large number, it's a fairly high percentage of our total close questions.
A perk of adding it as a custom close reason for our stack is that it would help signal to users with the ability to vote to close a reason for closing that's immediately clear. The "off-topic" reason has been used fairly often by users, but to me it's not clear that it's because it's art appreciation/history, nor does it act as a signpost for other users.