Epic-City skyline beyond the polar circle

{
  "input": {
    "prompt": " Illustration (or aerial photo composite) of a vast polar megacity in perpetual winter: endless high-rises and skybridges under a pale arctic sky, snow drifting between towers, and efficient multi-level transit lines threading through the scene. In the mid-ground, new pyramids rise among the skyscrapers like concrete mountains. Add subtle cues of prosperity/“cheap luxury”: warm golden interior lights, clean streets, and high-end storefront signage, contrasted with heavy snow and icy haze. No identifiable real-world landmarks; make it clearly fictional."
  }
}