Establishing reference photograph of a place: 2D hand-drawn illustration of a long, empty metallic corridor, wide low-angle view. Red emergency lights pulse along the walls, casting deep crimson glows and long shifting shadows. Steam pipes run across the ceiling, faint smoke drifting through the air. Flickering floor lights line the grated metal floor. A heavy blast door hangs fully open, retracted overhead, its frame at the corridor's midpoint. Charcoal greys and deep reds, tense industrial atmosphere, bold inked linework, textured painterly shading. No people, no text.
No people, no visible text, no watermark.
