I like the concept of a horror-platformer, with games like Limbo being a key favourite of mine. The animation and character design was very nice, by having a simple art style you were able to evoke a creepy feel and environment.
The enemies' hitboxes were very unforgiving and the level design was a bit rudimentary, devolving into just jumping on enemies and getting through the game. This game felt like something that would have a narrative or story attached to it. Whilst there was a background, it wasn't explored in any significant capacity. If you are going to have a story and a game with little gameplay, that is entirely fair and there are a ton of examples where this has been the case (again, Limbo is a great one). But you need to actually have a narrative to go along with, it's no use writing a beginning and then saying "oh he's forgiven himself" at the end.
I can see the sort of game you were going for, perhaps it was a bit out of scope of what you could do within your timeframe. It seems like an early prototype for a longer form narrative horror game, which is ok. Consider what you can get done in the time you are given and how best to get your idea across in a small-scale game. A good attempt, overall.