Use case: stylized-concept. Reference image: serene vertical landscape composition only. Create a clean 2:3 bright spring landscape background with a mirror-like winding blue river through rounded velvety grass islands, broad blue sky with large soft white clouds, and a few simple white daisy clusters at the near lower corners. Keep an open central sky and river corridor for product placement. Polished dreamlike 3D illustration, delicate water reflections, sunny soft light. Change hill silhouettes, river curves, cloud formations, flower placements, and grass texture so it is related but not identical. No text, numbers, Chinese characters, watermark, logo, brand mark, edge text, corner mark, border, or blank margin.
