Very nice.
A lovely song, coupled with appropriate animations and scenes that represent the lyrics quite well. Your characters are drawn very well and look very realistic.
The only complaint I have is that I couldn't help noticing the many static figures you had throughout this video. There were many scenes that displayed rigid figures only moving one part of their body or simply moving up and down, which takes away from the overall realim of the piece.
Still, when you did have the characters moving their bodies, such as in the fight scenes, it looked wonderful. If you could have that kind of animation throughout the entire video, I'm sure it would be an instant hit. I understand it's a long song and you presented enough variation to keep things entertaining, so I gave you a 9. Good job!