Use the supplied reference image as the sole locked product input. Preserve the product's exact appearance, structure, materials, colors, proportions, logo, label, accessories, and product-set relationship. Create a 2:3 photorealistic commercial product poster. Float the single pale blue serum bottle diagonally inside a large transparent liquid bubble against a vivid blue sky with soft clouds. Use bright rim light, glossy refraction, and weightless beauty styling. Use a polished premium advertising finish with crisp product focus, coherent perspective, realistic materials, controlled depth of field, and physically plausible lighting. Keep all decorative elements physically plausible and subordinate to the product. Keep existing product text legible when present. No poster text, watermark, extra product, unrelated logo, distorted object, changed product appearance, or unnecessary person.
