A Martian Overlord: 'Graviton' - A tyrannical figure with an iron grip on Mars' colonized territories. Framed in a dimly lit, industrial background, Graviton stands tall, his piercing gaze and chiseled features radiating an aura of ruthless authority. His helmet's visor glows crimson, as if fueled by the fiery passion for domination. Martian red rock formations loom behind him, underscoring his territorial ambitions.