This was really fun!
i especially liked the lighting effects you did in the beginning.
Like, when Raiden's blue effects lit up in your dark, red background.
They really popped out to me.
In my opinion, the embers moved a bit too fast though.
But, that area you created felt so "final battle-ish"
Nicely done.
I do feel the animation slowed down when all the extras started showing up.
However, this animation deserves more than it's current score of 2.82
for it's first half alone.