I'm glad someone did this. I spent a reasonable amount of time listening to several versions of this song, trying to think of some way I could stage something that really captured the feel of it as well as the details of the song's story. In the end, I gave up because I couldn't come up with any ideas of how I could do it justice.
But you found a way to do it that makes for a great photo as well as fitting the song. I love the glare and shadows from the blades. And the color for the blood is just right on my monitor!
It's odd that such a happy-sounding and catchy tune has such macabre lyrics. Maybe that's part of its appeal :)