Ultra-realistic IMAX-level Netflix-style cinematic tropical-romance collage, 9:16 vertical composition, use the uploaded image as the primary facial and composition reference with maximum face consistency across every frame, create a beautiful young adult couple enjoying a playful romantic day together in crystal-clear turquoise water beside luxurious overwater villas, arranged in a seamless six-frame storytelling collage with clean transitions and consistent identities. The woman has luminous fair porcelain milky-white skin rendered with ultra-smooth clean texture, soft natural pink freshness and perfect even face-to-body skin tone consistency, long dark-brown hair with naturally wet waves and flowing underwater movement, wearing an elegant fitted white one-piece swimsuit, while the handsome man has natural masculine features, wet textured black hair, an athletic build and black swim shorts. In the upper-left frame, show them splashing water playfully, the woman laughing with raised cheeks and bright narrowed eyes while the man shields his face with a surprised grin; in the upper-right frame, show him carrying her in his arms as they look closely at each other with wide joyful smiles and affectionate eye contact; in the middle-left frame, show them waist-deep in water with their foreheads nearly touching, her hands gently holding his face, both wearing soft intimate expressions with relaxed brows and quietly smiling lips; in the middle-right frame, show her riding playfully on his back while both laugh freely, their eyes crinkled and expressions energetic; in the lower-left frame, show an emotionally charged embrace with her head tilted back in spontaneous laughter while he holds her securely; in the lower-right frame, create an underwater romantic portrait of the couple gently kissing, their hair and fabric floating naturally as sunlight caustics ripple across their skin, with a small sea turtle swimming nearby. Background featuring bright blue sky, soft white clouds, calm tropical sea, distant overwater villas, natural water splashes, underwater bubbles and realistic reflections, cinematic daylight, fresh aqua-and-white colour grading, photorealistic, highly detailed, 8K quality.  Negative Prompt: inconsistent faces, repeated identical expressions, dry hair, stiff water, distorted embraces, deformed hands, extra limbs, unnatural underwater pose, visible collage borders, blur, text, logo, watermark.