Hey, a couple of logistical notes. I couldn't figure out how to paint, or that other controls besides move existed until I looked at the design doc, so it may be helpful to add them to the itch page, or better in the game itself. Also, the design document is a .doc file (while I believe is an old format). I had to import it with google docs to read it, so just not very user friendly. I think .pdf or .docx would be better.
For the game itself, I think it's a cute concept, though I'd like some more incentive for the player to paint things, like maybe getting new brushes, colors, etc., to make the mechanic a bit more interesting. Also the screams were funny at first, but get a bit old after a couple. I think it might be better to have more ambient chatter/chaotic background sounds that increase with panic. Overall, very cool and original idea!