The magic red door is the one with the little girl's picture on it, right? Just to clarify—do you mean you can't enter the red door, or are you stuck after going inside?
I know some of the puzzle clues and instructions aren't very clear. We'll keep polishing them and will also record a walkthrough.
We really wanted to add music, but we ran out of time 😢
Thank you for your detailed comment and I'll play your game also!