I love the amount of thought and dedication you're putting into this game - it really could be something amazing in the future! A few notes i have. 1- Movement to the left and right makes the camera jerk a bit. 2. I like the thought you're putting into the art, but it seems like I'm not getting to appreciate most of it because of the darkness. I love the smoothness of the walking animations, but I really couldn't tell that there were any at first because of the black stick arms and legs up against the dark background. The strange figures dangling from the ceilings, because they're completely black, look more like thick ropes or vines to me. You'd have to make it a little bit easier to tell what they are for them to be truly creepy. 3 - Maybe I'm just bad at platforming, but it seems like the player's a bit too big and slow to maneuver very well. Just my thoughts. I really hope you keep up with this game, you've got a great idea behind it!
Edit: Finally found the actual strange figures that weren't ropes. Definitely a bit creepier, but I think my comment about contrast still stands, and with the ropes as well. The ropes especially should have some color to them, so that the player knows they're not just decorative.