Very cool game! You managed to maintain a very good atmosphere of horror throughout. By giving the player option to lock the door from the start made me very paranoid about leaving anything open. Though I think it might have messed with the "go inside and lock up" trigger (since all the doors were locked), but it worked after a moment of opening and closing doors.
Perhaps thanks to the fact that the setting is not typically horror-y and instead something personable it was far more unsettling and scarier to me than most other games I've played.
Big props on being a solo dev as well, it’s a lot of work to make all the assets in time, and even if you over scoped this time, next time I’m sure with better planning and experience you will manage to make a fully fleshed out game ♥