I like the dark mood and distorted drums at :10. All the dissonant chords at :43 set the scene really well. After a while, I think you overuse the chords a bit so that it loses its "shock value." I can't help but feel that you didn't do a lot with the treble range in this track, and it seems to be lacking some melodic content. Also, the ending was pretty sudden. While I like the energy and sense of direction in the piece as it is, I think it would be worth it to slow down the pacing sometime and give it a bit more overarching shape and structuring. Still, nice job with the mood and instruments. I can totally picture this in a video game, probably haunted house-themed. :)