Very spooky song! I think it could use a little bit of variation, but it's very good. The sound effects didn't really fit the song, but still, they add that creepy vibe to the song. Only one more thing for me to criticize you for (sorry) I think that the silences were too frequent, but the ambient effects really spike that creepy sound in the song. You should look into Nicks comment, I'm not very good at songwriting.