the originals were, i believe, converted from the official models by natalia-auditore. i'm not certain because it doesn't say so on the patreon post, but when editing it and comparing it to the official model it was... identical lol. also i can't find their tos about reuploading meshes so i'm going to just say that since it's pretty much a direct rip, it's probably chill. anyway, with that preface out, the only difference he made was making it compatible with having pointed-ear meshes. he was mentioning that he wanted to remake the cord on them (because they're ugly as fuck in blender) but that's not happening yet.