Female Spartan, Halo universe, futuristic armor, metallic silver and blue, golden accents, athletic build, muscular legs, toned arms, strong facial features, short hair, ponytail, piercing blue eyes, no makeup, serious expression, standing pose, holding assault rifle, scenic background of a destroyed cityscape, ruined skyscrapers, smoke and fire, dramatic lighting, cinematic composition, 3/4 view, heroic posture.