Well, that was quite dark, but I enjoyed it very much. It's mostly because of how good the animation is. Everything is just so gorgeous here. You can say Merry Christmas. Nobody celebrates Hanukah or Kwanzaa anyway. The music was great.
My favorite part was when it showed his skeleton. I just love how dark it is. We need stuff like that here. At least he didn't murder anybody. I'm probably just too used to ultra violence.