Create a premium commercial product photograph of an original unbranded cordless aroma diffuser with a sculptural oval silhouette, fine matte porcelain shell and warm walnut base. Place it on a circular stone pedestal beside a shallow reflective pool, with a soft curved plaster wall behind it and a delicate ribbon of mist rising from the top. Use a square hero composition, centered slightly low, photographed with a 70mm lens and generous negative space. Soft dawn gradient light and precise rim lighting reveal porcelain grain, natural wood pores and realistic water reflections. Chalk white, pale sage, warm walnut and silver mist; quiet luxury spa mood; no text, logo, watermark, cable or extra product.