Cobalt Heartfelt Laughter

Create one vertical 9:16 image: a lock-screen wallpaper photograph of the couple in the attached photo, laughing at different stair heights as she leans beside his head with a heart over his shoulder.
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. The top forty-five percent is smooth white wall for device clock overlays added later. Both crowns and every fingertip remain below it. Camera at seated chest height, three metres away, 50mm lens; show their heads through knees, with the two broad steps low in frame.
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: Two broad white stone steps against an unbroken wall. Step edges remain in the bottom third; the upper wall has no railings or windows. No other objects or people.
WEARING: Coordinated cobalt and white: her cobalt cotton poplin shirt with rolled cuffs and white wide-leg trousers; his cobalt textured polo with white chinos. Her small silver studs stay clear of hair. Crisp poplin folds contrast with his fine knit; no logos.
POSE: He sits on the lower step, she one step higher just behind his right shoulder, image-left. Both sit firmly with feet supported on lower steps outside the crop. She leans her temple beside his and brings both hands above his right shoulder: curved index tips meet above and thumb tips below to form one heart. His palms rest separately on his own knees; her forearms never cross either face.
GAZE: Both turn their faces into the lens. He laughs with an open smile as she leans closer; she beams with lifted cheeks and bright eyes. Keep both faces within three-quarter view, separate and equally sharp; their expressions are warmly teasing.
LIGHT: Key: a large stairwell window outside frame camera-right gives neutral diffused daylight. Fill: white step bounce one stop below the key. Light both faces evenly despite their different heights, with shared catchlight direction. The empty wall stays slightly darker than their faces; white clothes retain texture.
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 stairwell window key; if any feature differs, it is wrong. Two intact adult bodies, limbs and hands exactly as described. Vertical 9:16, no text.