Good...
Well animated, but I really don't like people imitating krinkles. It's a very good collab, don't get me wrong, but I'd rather you have people make up their own fight sequences, not necessarily using the madness theme. Animation is a very complicated form of art, so it seems there would be so many styles to choose from, but people (including me) like to imitate what is now very famous because we are afraid to create our own style, and because the madness genre is so well known, people tend to lean towards that.
I know I'm going on a rant here, but just try to do a collab with more freedom next time, instead of a set theme, allow the animators to develop their own trademark style, you can specify that you want it to be an action sequence, but you should allow the authors to differentiate more.
Never mind, looking back on what I just said, do your thing... I really don't care...