Not bad. :) Feels like the characters are for the most part just floating around, their movements not animated, but the choreography's alright, and the end's a fun one. Maybe it would've made more sense to switch in the elevator music towards the end, though? Start a bit more ferocious and then tone it down when they're just watching; chilling? A bit more detail wouldn't hurt either.
Merry Christmas in a bit!
-cd-