Nice concept - I really liked the lighting and the Amnesia: The Dark Decent style craziness meter. The screen distortions and flying ghosts were great, but I also liked the fact it progressively slowed your character movement. If I have one criticism it's that the game felt too easy. There was always plenty of time to reach the next light source and the creatures were too slow to actually ever hit me.
It was a really nice idea though and could definitely be fleshed out into a longer game!
(Oh, and I loved the creepy ending screen!)