The bar turns black and stops filling while the mural is being attacked, by the way; meant to make that clearer but was basically out of time. You lose if the door falls, but you can't win if the mural isn't being painted.
If you ever give it another play: try talking to Anise. :)
That makes sense! I get having a time constraint. There are a lot of things that aren't as important as just getting the game working and out lol. I'll definitely be playing again! It was super cute and really good for a small project :)