Use case: product-mockup. Reference image: bright white marble kitchen composition only. Create a clean vertical 2:3 sunlit minimal white marble kitchen background with a large glossy pale-marble counter occupying the lower foreground, tall white-framed window on the left, an unmarked rounded matte-white vase holding a few thin bare branches on the sill, a small natural wood bowl containing two plain golden-yellow lemons at right, and a soft white marble wall with subtle gray veining. Keep the central counter clean for product placement. Photorealistic diffused morning light and quiet luxury mood. Change branch shapes, bowl form, lemon placement, marble veining, window proportions, and reflections so it is related but not identical. No text, numbers, Chinese characters, watermark, logo, brand mark, tiny edge text, border, white margin, or corner symbols.