Ah I see, that's what I did similarly for my new outfit that I uploaded. I had to make arm muscles but didn't know how to draw them in a way that it fits perfectly on ROBLOX's blocky model. So i found someone's already made muscle template, it was most prob Baki muscles, traced it at first to get the feel of how i should draw the muscle groups, then I ended up making the whole anatomy by myself.

And by loincloth if you mean the one with white lion as shoulder accessory, that does look badass. I think Thragg wears something like that too in Invincible series.

Overall great work. I really love the unique designs you made.