Nicely done. Love it, I'll probably buy it when it comes out! I couldn't do anything much better myself.
I only have 2 suggestions, and they're just minor suggestions at that.
1. you should probably get a little ragdoll in there, just to add background atmosphere.
2. I would kind of like it if they jumped out and shrieked at you like they do in dead space. That would scare a lot of people.
Also, I get a couple bugs that have prevented me from playing the demo.
On my Vista, it just doesn't play it. (But yet again, my Vista is retarded) and on my XP, when my person looks into the light, a bunch of glowing bars spike all over my screen, and I can't really do anything about it.
So far, from the videos I saw, I give it a perfect 10/10. That's great work.