Joyful Piggyback Moment

Create one vertical 9:16 image: a lock-screen wallpaper photograph of the couple in the attached photo, laughing in a piggyback cuddle with a hand heart below their faces.
FACE MATCH - TOP PRIORITY: The attached photo is the identity source only. Recreate both exact people, never lookalikes. For each face preserve the same hairline, hair colour and texture, brows, eye shape and spacing, nose, lips, jawline, chin, cheek width, skin tone, any mole, freckle, scar or dimple in its exact place, and for him his own facial hair. Never beautify, slim, smooth, age or restyle either face. Take nothing else from the photo - not its light, expression, clothes, pose or background.
FRAME: Vertical 9:16 with the top forty-five percent left as muted-blue backdrop for device clock overlays added later. Her crown stays below that band. Camera at his chest height, two-and-a-half metres away, 50mm lens. Crop her crown to his upper thighs; her knees appear at his sides, feet outside the crop.
BODY: Two real adults, each with two arms, two hands, two legs and two feet. Each hand has four fingers and a thumb; unused fingers curl naturally side by side while the named digits form the heart gesture. Every limb connects to its owner and does only its assigned action. Heads in true scale, adult shoulders and natural hand sizes; cropped limbs continue outside the frame.
SCENE: A seamless muted-blue studio backdrop with even tone across the empty upper field. Gentle tonal falloff stays around the couple in the lower half. No props, visible lamps, graphic shapes or decorations.
WEARING: Matching lilac brushed-cotton sweatshirts with white crew-neck collars and charcoal joggers. Sleeves end at the wrists, hands distinct. Her sweatshirt gathers naturally at the elbows; his shoulder seams stay visible beneath her forearms. No logos or jewellery.
POSE: He stands steadily with a slight forward lean, carrying her on his back. Each of his hands supports her corresponding thigh from below; her bent knees sit beside his hips. She leans her head beside his, cheek touching his temple, and brings both forearms over his shoulders. Her own hands form a heart just below his chin: index fingers curve together above, thumb tips touch below, remaining fingers curled. Their faces stay unobstructed.
GAZE: Both look directly at the lens, laughing at the piggyback moment. He wears a broad open smile with lifted cheeks; she beams with teeth visible and bright smiling eyes. Keep both faces sharp at the same focus depth, with natural adult proportions and their individual expressions.
LIGHT: Key: a large neutral studio softbox above camera-left illuminates both faces evenly. Fill: an off-camera white reflector right, one stop below the key. Clear catchlights and soft chin shadows connect faces to bodies. Keep the blue background a step darker than lilac fabric; skin tones stay true.
PHOTOGRAPH: A true photograph on a real camera, not an illustration or 3D render: natural uneven skin tone, individual brow hairs, realistic hair strands, honest fabric weave, soft lens grain, real skin texture scaled to the crop, never retouched smooth. White balance stays neutral to the key.
TEXT: No text, logo, watermark, letters, numbers, clock, date, battery icon or status symbol. Clothes and scenery have no lettering. Hearts come only from their physical gestures; no graphic hearts, stickers or interface. The upper band stays empty.
FINAL CHECK: Both faces are the exact couple in the attached photo, every feature matching, lit by the large studio softbox key; if any feature differs, it is wrong. Two intact adult bodies, limbs and hands exactly as described. Vertical 9:16, no text.