Use case: product-mockup. Reference image: elegant white arch, round podium, and tropical leaf shadow composition only. Create a clean vertical 2:3 minimalist white display scene with a wide shallow ivory circular podium centered in the lower third, a large white arched wall feature behind it, partial architectural blocks at both lower sides, and soft palm fronds entering from both side edges to cast long subtle shadows. Use high-key neutral daylight, refined 3D studio render. Keep the podium empty. Change arch curvature, podium thickness, leaf positions, block shapes, wall texture, and shadow direction so it is related but not identical. No text, numbers, Chinese characters, watermark, logo, brand mark, tiny edge text, border, or blank margin.