you should use the same concept, but with 2 human arms, and 2 human legs.
Edit: I guess I was thinking about the skeleton beasts from Dark Souls

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That makes more sense, when you originally said that I was thinking of actual human arms and legs, attached to the body in a frankenstine-ish way.
I’ll keep that idea in mind, but then again, I’m not that good when it comes to hands and feet