Photorealistic Waterfall Inside a Concrete Bunker

Photorealistic interior of an underground concrete bunker transformed into a subterranean cavern. A powerful waterfall blasts from a jagged hole in the ceiling, spraying mist across damp walls and a shallow pool on the worn concrete floor. Rusted pipes, ventilation ducts, and emergency lights create cold amber highlights against wet surfaces. Lush moss and small ferns cling to dark corners while light shafts pierce through cracks, illuminating mist and ripples on the water. Wide-angle, ultra-detailed, high-resolution render with realistic textures, reflections, and cinematic mood.