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 horizontal 16:9 studio photograph. One tall thick jade-green ribbed glass panel on the far right, standing slightly diagonally, its lower edge meeting charcoal stone. Dark near-black backdrop and surface continuous with a subtle horizon. A precise soft side light reveals green internal depth, imperfect vertical ribs and fine pale reflections; a small believable emerald caustic pool on the lower right. Left 62 percent is nearly uniform deep charcoal with faint natural sensor grain. No glowing green atmosphere, neon lights or digital gradients.