Old Man Boxer Character Design Prompt

African American strong old boxer full-body portrait, designed as the perfect foe to a legendary martial arts master, powerful elderly man with a muscular heavyweight build, bald or closely shaved head, sharp aged facial features, intense stare, battle-worn face, strong jawline, thick gray beard or trimmed white goatee, wrapped boxing hands, boxing shorts, open robe or sleeveless hoodie, heavy gold chains around his neck, rings, confident intimidating stance, old-school champion energy, streetwise and fearless, exaggerated cartoon realism, highly detailed character design, dynamic full-body composition --ar 2:3 --sref 3055069247 597015345 --hd