Establishing reference photograph of a place: 2D hand-drawn illustration, high angle view down a dark industrial ventilation shaft opening into a shadowy courtyard below. A glowing cyan fiber-optic cable hangs taut down the center, casting cool light on greasy black riveted metal walls. Dim industrial orange lamps glow faintly at the shaft's base, revealing a metallic crate on dusty concrete. Still air, faint dust motes, pipes and grates. Palette of greasy black, industrial orange, glowing cyan. Claustrophobic, moody atmosphere, no people, no text.
No people, no visible text, no watermark.
