UPDATE:
Ok, I've made the Mortuskull skin more or less, but I'm waiting for his model to be completed. BSAJ is making Mortuskull's model for me, and it's looking pretty good so far. I posted the world's worst concept art pic above, but he got the message

. I know I'm being a bit strict and overboard, but you don't really understand: I made Mortuskull years ago. I have a picture of him in real life and it wouldn't feel right to use him if he looked different by THAT much. He's a skeletal Death wearing leather with blue flames coming from his head. He wields the MOST POWERFUL sword in the Multiverse, made by combining the 4 Death General Weapons, and this sword can kill you 4x over with a scratch! Naturally I'm going to weaken it in the campaign

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-Insaniteus-