Well
The animation is a lot smoother than the others (higher framerate?). The characters have more detail than the last one, and have better shading and movement. The backgrounds were much better than the last, as there are actually backgrounds as to just a random single tree. The middle of the animation was a lot better and seemed if more effort had gone into it than near the ending (frog conversation).
The jokes i dont understand having never played Animal Crossing, but i guess this has been made for fans of Animal Crossing, so i wont comment on them.
The voices were clear as usual, yet it seems the quality might be lacking as the elephant and frogs voice were muffled (or just had stereotypical accents). The sound effects were good, though they seemed to be a different volume to the voices, but it was anything drastic.
I didnt really enjoy it due to having not played Animal Crossing, but im sure the fans of it will enjoy it.
Though i dont get what the easter egg is all about...