Create a premium fitness product advertisement poster for [Product Name]. Theme: [Color Theme] gradient background, energetic and modern. Scene: A stylish [Model Type] female/male fitness model wearing [Outfit Color], holding [Product Name] pouch in front with close-up hand perspective. Product Details: Brand: [Brand Name] Flavor: [Flavor Name] Main headline: [Main Headline] Sub heading: [Sub Heading] Side Features: • [Protein Amount] • [Feature 1] • [Feature 2] • [Feature 3] Elements: Floating oats, nuts, chocolate pieces, splash effects, ingredient particles flying. Typography: Bold premium commercial fonts, clean product spotlight layout Output: Ultra realistic, cinematic lighting, premium product poster, 4K square format.