worst quality, low quality, blurry, jpeg artifacts, watermark, signature, bad anatomy, extra fingers, deformed hands, mutated limbs

masterpiece, best quality, highly detailed, sharp focus, single modern desk lamp centered on a pale stone plinth, three-quarter product view, clean studio background, balanced soft key light from upper left, subtle fill light, controlled contact shadow, accurate material separation, neutral colour response, 70mm lens, commercial product photography composition