prompt: Dark, moody photograph of an empty underground subway tunnel receding into the distance. The tunnel walls, made of curved, segmented concrete, dominate the upper half of the frame, marked by panel seams and irregularly spaced perforations. The left side features iron railway tracks running into the vanishing point, accompanied by electrical cables suspended overhead. The right side features a concrete pedestrian walkway, evenly illuminated by a row of spaced white overhead lights, creating stark pools of light amidst the darkness. Red safety boxes are affixed to the right wall beneath each light. A yellow maintenance cart or equipment is positioned in the lower right foreground near the end of the walkway. In the distant center background, two small silhouetted figures, barely discernible, are seen under faint lighting at the end of the tunnel. Low key, sharp focus, dramatic contrast, high shadows, minimal color palette of dark blues and grays with sharp white highlights, industrial atmosphere, minimalist and isolated, vanishing point perspective draws the eye.