Prompt de póster de viaje con serigrafía colorida

Create a vertical 3:4 before-and-after travel poster illustration. The top half fully preserves the input real Thailand travel photo, maintaining the original composition, people and building/street subjects, actions, lighting, and perspective; use a thin white dividing line in the middle. The bottom half extracts real elements from the same photo and reconstructs them as a color-separated travel poster: off-white paper background, limited to high-saturation spot colors such as indigo, vermilion, coral pink, bright yellow, and lake green, with coarse halftone dots and paper fiber texture, obvious but restrained misregistration and print edge effects. Preserve subject recognition and key spatial relationships, actively change information density and composition - not a filter applied to the original image; streets, temples, rivers, boats, stalls, and other elements vary according to the original image, not a template. The bottom half may include a very small amount of short English location labels derived from the photo, but do not generate long unverifiable text. No logos, watermarks, AI badges, original image corner marks, or unrelated landmarks.