I'm not a great animator myself, so I can't be too critical. But I'll give a few suggestions. Firstly, animation wise it wasn't too bad. The first animation didn't have much character movement, but it didn't need too. The second needed a faster frame rate. Yours didn't have much movement either, but from what I saw it was pretty well animated.
Collabs always has to have a theme, and these seemed to be tied together by 'WTF'? Because many animations could fit into this category, the collab doesn't really seem to flow.
Well, those are my comments. Hopefully they're helpful. 5/10 and 2/5.