Japanese-style mermaid stage collage

Objective: To create a sophisticated Japanese-style stage performance photo collage/project for a fictional mermaid-themed artwork.{argument name="main title" default="ミセスマーメイド"} The work employs a realistic editorial photography style and soft magazine layout. Canvas: Widescreen 16:9 horizontal collage, approximately 1200×675 pixels, divided by a thin white border into a preparation/backstage area on the left and a pool/stage area on the right. It utilizes clean cream white white space, soft taupe clothing, bright turquoise pool water, and natural, soft lighting. Layout: Precise use of 9 photo panels and 2 circular label badges. The left half contains 5 backstage panels: a large vertical portrait of a young East Asian woman with long black hair, wearing a loose taupe shirt; a group photo in the upper right corner showing three young women surrounding documents; a close-up in the center showing hands being styled; a medium-length profile portrait showing a neat ponytail; and a back view of a hairstyle shot at the bottom showing a neat center-parted ponytail. The central vertical panel displays a full-body shot of a woman standing by the pool, wearing a wet-looking taupe long-sleeved dress, one hand near her face and the other on her hip. The right half contains three pool performance panels: one from above, a back view showing a woman swimming with her twin ponytails above the water; one from the center, a frontal pool portrait with wet hair and shoulders above the water; and one close-up in the lower right corner, showing a performer leaning to the side in the pool, wet taupe fabric clinging to her body, hands close to her face. An additional lower center pool portrait is added between the center/right grid, bringing the total number of photo panels to nine. Text content: A large handwritten Japanese title in the upper left corner.{argument name="main title" default="ミセスマーメイド"} Add a small Japanese subtitle below it.{argument name="subtitle" default="This is my first time on stage, and I want to enjoy every moment!"} On the left side of the portrait, place a beige circular badge that reads "Before the Trial" and includes the small English text "— backstage —". Near the top of the center/right border, place a beige circular badge that reads "Main Session" and includes the small English text "— on stage —". Maintain a refined, minimalist, and magazine-like layout. Main subject detail: The recurring subject is {argument name="character description" default="A young East Asian woman with long, shiny black hair"} She was filmed as the same performer in all panels. Her costume was {argument name="outfit" default="A loose-fitting taupe chiffon blouse or a damp dress with a ruffled collar and long sleeves."} Hairstyles change from natural straight hair backstage to a sleek high ponytail, and then to pigtails in the pool. Faces can be softly blurred or left indistinct, but must retain realistic skin tones and photographic lighting. Visual style: Realistically generated photography, a clean lifestyle magazine collage, soft sunlight, shallow depth of field, crisp white grid lines, beige circular markers, an elegant Japanese editorial atmosphere, and bright aquamarine water reflections with highlights. Constraints: Maintain exactly 9 distinct photo panels and 2 circular badges. Do not add logos, watermarks, extra titles, extra figures or decorative icons outside the backstage collective panel. Keep the composition very similar to a dramatic before-and-after collage: the left side for backstage preparation, and the right side for the performance in the water.