Sécurité des billets de banque - Souvenir de voyage en taille-douce

Transform the input photo into a vertical 3:4 or horizontal 4:3 travel / portrait study poster. Based on the input composition, choose a top-bottom or left-right split: one side retains the real photograph, occupying about 40% - 55%, accurately preserving the number, identity, action, viewpoint, perspective, lighting, and spatial relationships of people or architecture; the other side reconstructs the same subject as intaglio engraving on a generic banknote-inspired paper surface, not fixed to any country or currency. For the translated side, use warm white, gray-beige, pale blue, ochre green, ochre yellow, or low-saturation paper and ink tones extracted from the original image. The contours of facial features, hair, fabric folds, or building facades, window grids, roads, tree canopies, etc., must be formed by fine parallel lines, cross-hatching, curved engraving, stippling, and intaglio darkened areas. Highlights reveal the paper surface, while shadows are created by line density and slight embossed relief. Add abstract guilloche swirl patterns, fine rings, radial lines, wavy security backgrounds, partial watermark shapes visible against light, short security threads, micro-engraved lines, and slight print registration shifts that cannot be replicated on real currency; show paper fibers, ink bleed edges, slight ink relief, embossed shadows, and localized wear. Only allow minimal specimen fields, such as SECURITY STUDY 02 or INTAGLIO SAMPLE. Do not create negotiable currency, and do not generate real denominations, institutions, signatures, serial numbers, official emblems, QR codes, logos, watermarks, or source image / AI icon labels.