It has a creepy factor that really carries it very well. I liked the combination, and that you kept the focus where it should be, showing the girls as victims of the "devil".
If there was anything about it I didn't like, I think it was that many of the downswings in the music didn't seem to have a dramatic transition or effect to provide more visual impact going into the upswings (example of which is the abrupt jump transition @ 3:04). Still, that's nitpicking it a little too much -- I really liked it overall.
