Player Mob Models.zip is a release file of the Minecraft resource pack [ Java ] Human Player Mobs, made for Minecraft 1.16.5. It was published on May 26, 2021 and is 25.7 MB in size. For the full description, screenshots and every other version, visit the [ Java ] Human Player Mobs resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.