Minimalist luxury product image for e-commerce. Two similar ...

Minimalist luxury product image for e-commerce. Two similar cylindrical aroma diffusers shown in a vertical hierarchy. Upper diffuser: premium version, clearer blue flame-style light, sharper highlights. Lower diffuser: standard version, softer light, balanced appearance. Centered composition, symmetrical balance. Subtle mist effect between the two products. Dark neutral background, studio lighting, realistic materials. Clean, elegant, professional, Japanese minimal design. No text, no branding, no decoration. Ultra high resolution, realistic shadows. Top product: advanced model, slightly brighter blue ambient light, refined details. Bottom product: basic model, softer blue light, clean and minimal. A subtle mist and light flow connects the top and bottom devices, symbolizing shared origin and evolution. Dark gradient background, minimalistic, luxury, calm, Japanese aesthetic. Soft cinematic lighting, high contrast, ultra clean. No text, no logo, no people. Photorealistic, high-end commercial product photography, 4K quality.