Open Minecraft and go to > Resource Packs > Open Pack Folder . Move the downloaded .zip file into this folder. Select the pack from the list in-game to activate it. Game Mods & Character Models
The file sky Erza Scarlet.zip is available for various Minecraft versions (1.7.10 through 1.21.4) on CurseForge . How to install: Download the .zip file matching your Minecraft version.
For those looking to customize Discord or Twitch, you can find in compressed formats.