Photorealistic retail display background photograph, square 1:1 frame, captured straight-on at standing height with a normal lens and deep focus. A softly arched display niche is built into a smooth matte warm-clay wall. The arch band is flat-painted architectural molding whose shallow ribs radiate from one small round boss at the crown: the rib lines fan outward and downward from the boss and follow the curve of the arch to its springing points, like the segment walls of a single pumpkin slice seen face-on — flat-painted relief with gentle gradients, not a drawing, illustration or cutout, and no concentric bands. Inside the niche a single clean rectangular shelf of pale honed stone sits just below the middle of the frame, its surface completely empty and unobstructed, front edge parallel to the bottom of the frame. The wall around the niche stays plain and unadorned, rising unbroken to the top edge.
One soft key light from the upper left models the ribs and lays a quiet pool of light on the shelf; shadows are soft-edged, warm grey, never black. No foliage, no vines, no carved face, no props and no products anywhere. Every surface is plain and unlettered. The empty shelf is the only placement surface; the calm wall field above and beside the niche stays clean as a separate copy zone, and the two areas never overlap. The set runs continuous to all four edges — wall and shelf meet the frame unfinished, as a photograph does — and nothing important touches or is cropped by the border.
