(SPOILER WARNING!!!)
"If you want to remove your art,
Twitter: @Mrdrnose1"
Dude.
DUDE.
The people have to find the secret room first. What the heck.
"If you want to add art,
Send author's picture and nickname"
Oh! No wonder people would reject their art from your room! because other people will upload their art without their permission!
Sigh.
Also there should be more general painting rooms and more secret painting rooms. My first instincts after being a third spoiled were to sweep the Language Level first (I didn't even bother going to the Math Level until I got two-thirds spoiled.) and check the absolutely empty room in the Bunker and find a way into the room with tables stuffed onto the super-secure door in the ritual room. (It's kinda unrealistic how you can't break doors on your own or move tables and chairs.) Just having a secret room with an organised long hallway in such a random place seems so weird and arbitrary (and in the PR of all places!). Anyway, yeah.