Photorealistic Supernova Over Ruined Cityscape

Photorealistic scene of a distant supernova exploding in a violently bright multicolored stellar outburst, lighting up a ruined metropolis beneath. A colossal expanding shell of plasma radiates orange amber and cobalt blue, with wispy filaments and shock waves. The foreground shows crumbling stone arches, collapsed skyscraper skeletons, and vines reclaiming ruins; jagged debris lit by flickers of light. The sky is a mix of cosmic dust, nebula ribbons, and a starry backdrop, the explosion casting dramatic volumetric light with long shadows, dust motes and ember sparks. Reflections shimmer in a shallow pool among rubble; distant silhouettes of ruined city or mountains under a smoky horizon. The mood is hauntingly beautiful and apocalyptic with a sense of awe at cosmic scale. The camera angle is slightly low, looking up toward the luminous fireball, with the ruins occupying the bottom two thirds of the frame and the sky dominating the top third. Ultra high detail, crisp textures, cinematic depth of field, subtle lens flare and glow.