Boundman resembles Luffy's visual appearance when he became Nightmare Luffy (aside from the hardened Busoshoku Haki 'tattoos', the enlarged biceps, and a more rounded torso) on account of Luffy's increased muscle mass sizing, haircut's form, and sinister expression. The Haki coating on his entire body resembles the wispy finishes of https://bobbyy738vsp1.gigswiki.com/user