Both characters has cybernetic enhancements called "Leviathan". "Leviathan" is one of the first child of cybernetic industry. They are heavy and clumsy with a lot of wires. In the same time they are cheap and effective. Used in police bots controlled by AI, and also as a replacement limbs for high ranked officers who lost their own limbs in action.
Composition Experimentation by James Sparkes [link]
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Daethly Deviant Feature XIX by SisstreDaethe [link]