Video source: https://youtu.be/-M6ZC4DLWSY
More Cosmetics Mod is available on different versions of Minecraft Java (1.8.9, 1.17.1, 1.18, 1.18.1, 1.18.2)
Make sure you get the correct version of the Mod. 1.8.9 is based on Forge and the rest are based on Fabric Mod loader.
To view how to install Fabric or Forge mod loaders with mods, watch this - https://youtu.be/yYCSE28e4yo
Get Adoptium or Zulu Java JDK for JAR files - https://www.gamerpotion.net/2021/11/java-to-use-with-minecraft-java-editions.html
Get the MoreCosmetics Mod from here - https://www.curseforge.com/minecraft/mc-mods/morecosmetics
Enjoy PVP? then get the Best PVP modpack today for version 1.8.9 and 1.18.2 which include the MoreCosmetics mod in the pack. Grab the Best PVP modpack today from - https://www.curseforge.com/minecraft/modpacks/best-pvp