Serene Turquoise Wooden Tabletop with Tropical Shadows

minimal studio product backdrop, empty whitewashed wooden tabletop or floor occupying the lower quarter of the frame, subtle horizontal plank grain and fine brushed texture, smooth turquoise to pale cyan gradient wall background, faint soft-focus tropical leaf shadows in the upper left, bright airy high-key lighting, gentle daylight from upper right, clean negative space, serene summer atmosphere, photorealistic background plate, sharp tabletop texture with softly blurred background, no objects, no people, uncluttered composition