Hatsune Miku, angel, large wings, white dress, long boots A mecha design of a justice-seeking combat robot, featuring a heavy full-armor chassis with boxy angular frames and exposed cables, caterpillar tracks for legs, a cylindrical head sensor that glows as it locks onto a target. It wields a beam-edged chainsaw weapon that sprays sparks as it slashes, and is equipped with an anti-missile catapult and a thick shield, soaring over a swirling sandstone desert under a dramatic overcast sky. Dust and oil stains are visible on its scarred armor, captured with a cinematic dynamic angle, intense amber sunset lighting casting long shadows, gritty realism and kinetic energy, with volumetric sandstorm particles mixing with sparks and smoke.