How does one go about skinning monsters?

this is probably really easy I
this is probably really easy I've been hunting skins down for other reasons when it hit me that there's some impressive skins for Unreal1 monsters in t…

𝐆𝐚𝐫𝐨𝐮 𝐌𝐨𝐧𝐬𝐭𝐞𝐫 𝐟𝐨𝐫𝐦 Minecraft Skin

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