Drag every texture 1 by 1 to the avatar and then press ctrl + z to revert the avatar back while doing each texture then you should get a materials folder
It has textures, you just need to download them from the texture link in the description because with the textures included, the unity package is too big.
If you guys enjoy or do not like this upload, please leave a comment below so I may read on what I can improve but please don't make it harsh, this is after all my first upload and Unity is a pain when trying to do a Unity Package.