Lone female figure, late teens–early 20s, slim build, long silver-white hair flowing in wind, standing at the edge of a snow-covered rooftop, back view, overlooking a frozen post-apocalyptic city of collapsed skyscrapers, anime cinematic illustration, painterly digital art with soft brush textures, extreme wide shot, high-angle overlook with strong depth and scale, cold daylight with diffuse overcast lighting, pale ice blue, desaturated steel gray, snow white palette, bleak isolation and quiet resilience mood, blowing snow and atmospheric haze, damaged concrete and exposed rebar textures, volumetric fog, motion in hair and coat, global illumination, cinematic composition, ultra-detailed environment art, matte finish, 4k quality