Use case: photorealistic-natural. Create ONE finished photographic website background for a coherent collection named Prism studies. Premium material still-life photography of real thick optical glass and physically believable refracted sunlight, captured on a medium-format camera. Architectural restraint and tactile detail: small irregular air bubbles within cast glass, fine moulded ribs where specified, plausible beveled edges, dense colored edges, subtle surface imperfections, contact shadows, realistic internal reflections and luminous but controlled caustics. The glass must look photographed, never glossy CGI, a plastic render, a generic abstract blob, a torus or a floating chrome object. Color comes from the glass and light, never an added digital gradient or haze. Deliberate asymmetric composition, no unnecessary props, no vase, no flowers, no sphere, no letters, typography, logos, watermark, browser, UI, border, collage, contact sheet or people. Output ONE standalone edge-to-edge image in the stated aspect ratio, using the highest native detail available. Preserve the requested calm copy space; keep sharp visual detail and bright caustics out of it. Scene and framing: A panoramic 21:9 photograph. Extreme low raking-angle view across one thick smoked-glass horizontal plane, cropped across the lower 22 percent of frame; its near edge slants subtly upward from lower-left to lower-right. A very narrow amber line of refracted light traces part of the glass edge and breaks naturally at two small imperfections. Fine gray surface scuffs visible only near the light, physically real black tabletop. Upper 72 percent is quiet near-black darkness, no ceiling, windows or other props. Understated architectural mystery, not a neon laser graphic.