It seems like you should have put more animation into this story. It is just more like something that would be better up on a blog or some website about horror stories. Still, I can not blame you because you did manage to throw in some good visuals while telling a story. The best bit of animation is at the end when you see the skeleton through his body. It's not much, but it actually does show that you have artistic talent. The music was also really good in this.
You do know how to create a good atmosphere as it was certainly creepy. As for the story itself, it was fairly good even if it was a bit too typical. The strongest part of it is probably the wording. You know how to talk colorfully and put detail into your work. One thing that I was always taught in writing class was how important it was to show rather than tell.