Couple Diorama Poster

Output the image on its own, not as a collage. Use a 3:4 vertical frame with the upper and lower zones exactly 1:1 in height, each taking 50% of the picture.
Upper half: keep the original couple photo. Hold both people's identities, facial features, poses and the way they interact exactly as in the original (stance, hand gestures, body angle, gaze direction and relative position must not change), along with their proportions, the real photographic texture, the natural light and the original colour mood. Keep the real background complete, whatever it is — street, shopfront, nature or interior — and apply only a light, refined photographic grade so it reads like an art magazine, an independent publication or exhibition photography. To fit the frame you may extend the sky, ground or surroundings naturally, but never stretch, distort or alter the two people, and every detail of their outfits, accessories and hair must survive.
Lower half: take the most recognisable narrative core of the photo — the two people's actions, poses, relationship, outfits and setting — and rebuild it as a 3D impasto oil-painting miniature diorama. In the lower half the couple's actions, poses, gestures, interaction and composition must match the photo above exactly; do not redesign the pose, only turn the realistic people into refined, three-dimensional, touchable miniature figures: keep hair, facial features, garment patterns, accessories and other key identity cues, with proportions lightly refined but finely made overall. Compose with generous white space and a centred or slightly off-centre diagonal axis that follows the direction of movement in the original. On bright white textured paper, carry the figures on a single translucent impasto band of colour derived from the photo's subject; the band can become ground, a path, water, a streak of light or an abstract slice of landscape, matching the kind of place in the original. Let the figures interact with the band naturally, with reflections, ripples, flecks of light or trailing strokes. Translate the real setting into a miniature impasto version that recedes as a secondary layer, keeping only a few motifs that belong to the scene, so the space feels light, poetic and able to breathe.
Painting language: impasto oil × miniature object × clear light. Keep obvious paint build-up, palette-knife marks, raised edges, paper texture and a half-handmade, sculpted feel. Concentrate the impasto on the ground band, background colour blocks and highlights on the clothing, so the figures are refined and dimensional while keeping the material weight of real oil paint — avoid slick plastic and the look of an ordinary 3D model.
Colour: pull the brightest, liveliest, most alive colours out of the photo above and remix them rather than averaging. Raise brightness, clarity and purity overall, derive clean, cheerful hues naturally from the original, and use a fresh warm–cool relationship for a healing, soothing feel. Use plenty of pure warm white as breathing space, lit locally with warm orange, golden yellow or pink. Avoid grey, dirty, aged, sombre or brown-filter tones, fluorescent colour and cheap candy colour.

Text: a light touch. Distil a short headline from the couple's relationship, the setting or the mood, with a very small amount of secondary text, a number or a tiny annotation. Keep the lettering fine and restrained with plenty of space around it, placed along the diagonal axis, beside the figures or in the white space, like a delicate label in an art publication.

Overall mood: a bright white ground, lively impasto, clear colour, miniature figures, large areas of white space and warm light, adding up to a refined, soothing atmosphere