IMAX-level Netflix-style cinematic stairway fashion portrait, composition

Ultra-realistic IMAX-level Netflix-style cinematic stairway fashion portrait, 9:16 vertical composition, use the uploaded image as the primary visual reference for pose, outfit mood, stair background and soft feminine expression, create a beautiful young woman sitting gracefully on dark stone stairs in a relaxed front-facing full-body pose, knees close together, feet placed forward, one arm resting across her knees and the other hand softly supporting her cheek, her eyes gently closed with a peaceful random smile, showing calm happiness, soft shyness, quiet confidence and dreamy feminine charm, her luminous fair porcelain milky-white skin glowing with ultra-smooth clean texture, soft natural blush and perfect face-to-body skin tone consistency, long dark-brown hair styled in a messy high bun with loose face-framing strands and natural volume, wearing a colorful floral spaghetti-strap summer top with warm yellow, red and blue pattern details, paired with light casual shorts and clean white sneakers, add delicate minimal jewelry and natural nails, background featuring wide dark grey-black stone stairs with subtle texture, cinematic depth and clean symmetrical lines, soft diffused daylight falling beautifully across her face, shoulders, arms and legs, creating gentle highlights, smooth shadows and a premium lifestyle editorial mood, camera pulled back enough to capture the full seated pose clearly…