Great game, really good experience considering how long this lasted. It had a really strong atmosphere. I have a few tweaks though,
1. To me, the monster seemed a bit odd-looking, I think if you maybe take away the mouth or the whole face it might look creepier.
2. It would be cool if in the end the garage door shut, but the creature came through the door behind the player and pushed them on the ground staring down at them... Then the little dark screen that says make sure it's closed comes up and ends the game