mmmmh. ok, let's get my hard truths out of the way: in my humble opinion, when you use store bought game assets of THAT quality and extent in a gamejam (or in your own projects), it is very very hard not to be outshined by them. like, ask yourself: which percentage of the appeal of your game is the actual asset pack? 80%? 90?
I think you had to put a whole lot of work into the game, just to make a dent in that number, but ultimately that's up to you.
I did really enjoy it though, you really managed to recreated that feeling of resident evil or other horror games of searching through a mysterious place, fully aware that you are not alone. the monster was really scary and all the blood and dead bodies in the other dimension were superb.
I do wonder what the not-mirror-dimension was for? is there any reason to be in that one?
also the sound and music was too low. and god damn, the look of your menus....
I'm sorry, I might be extra critical on you, because your game looks like a AAAA game and I am actually quite envious, so don't take any of it too seriously...