Doubutsu no mori furry characters depicted as kemonomimi, with animal ears and tails but with no fur and normal (by which I mean anime) facial shape, are split between personification and humanization. Based on the respective wiki pages, and the precedent set by @nonamethanks retagging everything Zootopia on 2018-06-16, all of the relevant Animal Crossing images should be updated to humanization.
However, I'll wait until bulk update request #3863 goes through before making the request to avoid potential confusion.