Colossal Ring on Earth

Create a cinematic science-fiction landscape titled {argument name="title concept" default="The Ring on Earth"}: a colossal vertical ring megastructure standing on the horizon in a vast grassy plain, so enormous it dwarfs mountains and dominates the sky. The ring is a single continuous circular band, slightly tilted in perspective, made of weathered gray metal and concrete-like panels with intricate industrial seams, layered armor plates, faint windows, exposed structural ribs, and one visible circular mechanical docking module on the right side. The bottom edges of the ring disappear into atmospheric haze near the ground, suggesting impossible scale. Foreground: a quiet wet meadow with wild grasses, small flowers, scattered dark rocks, and a shallow reflective pond occupying the lower center, mirroring the sky softly. Midground: rolling green fields, low hills, tiny waterways, and distant mountain silhouettes, with a few snowy peaks far right. Background: pale blue sky with soft clouds, warm low-angle sunlight from the left, mist and volumetric haze around the ring. Style: ultra-detailed photorealistic concept art, epic scale, naturalistic lighting, muted greens and blue-grays, soft golden highlights, serene yet awe-inspiring mood, 4:5 vertical composition, wide-angle lens feel, high dynamic range, subtle film grain. Constraints: no people, no vehicles, no text, no logo, no watermark; keep exactly one giant ring structure and one foreground pond.