Create an ultra-realistic, cinematic birthday celebration portrait in a vertical 4:5 aspect ratio. The subject is positioned in a mid-to-full body composition, centered and gracefully interacting with a decorated cake, with no cropping of the dress or head. The face must match the uploaded reference image exactly, preserving identity, facial structure, skin texture, and natural details with high fidelity. The subject is wearing a luxurious, floor-length ball gown in vibrant pink tones, featuring a voluminous layered tulle skirt and a detailed, embellished bodice with subtle sparkle. A delicate tiara rests on the head, and a soft pastel “Birthday Girl” sash is draped diagonally across the torso. Hair is styled in soft, flowing waves, enhancing an elegant and celebratory look. Pose is gentle and natural: slightly leaning forward while placing or adjusting a cake on a decorative stand, with a soft, genuine smile and gaze directed downward toward the cake. Expression conveys joy, warmth, and a calm celebratory mood. In the foreground is an ornate, antique-style golden bicycle-shaped dessert stand with two tiers. – The top tier holds a white frosted birthday cake decorated with pink brushstroke-style frosting, fresh berries (raspberries, blueberries), and a small crown topper. – A second cake appears on the same bicycle structure in a different position, maintaining visual balance. – The lower tier contains neatly arranged cupcakes topped with soft pink frosting swirls. Background is an outdoor garden party setting with shallow depth of field (strong background blur). A decorative balloon arch in pink, white, and soft metallic tones frames the scene. Warm string lights hang across the background, along with soft party banners, creating a dreamy, festive ambiance. Lighting is soft natural daylight combined with warm ambient highlights from string lights, producing even skin tones, soft shadows, and a glowing celebratory atmosphere. No harsh contrast. Camera settings: eye-level or slightly above eye-level angle, 50mm or 85mm portrait lens look, shallow depth of field (f/1.8–f/2.8), sharp focus on subject and cake, background smoothly blurred. Ultra-high resolution, 8K detail, natural skin texture, no CGI, no over-smoothing, no artificial plastic look.