I like the setting and that the main character is a scale! Nice escape room! :)
I would adjust some collision because the character go through objects sometimes and the movement of the camera is too fast in my opinion. I would add another music when you go in the rooms where the enemy go back and forth so you know there is a danger. Use some sounds effect for the enemy and the main character (steps sound, a sound when the enemy step on the main characters, etc...) and some backgroun noises.