Cartão Postal Mau Son Mountain, Lang Son, Vietnam Travel

Travel poster featuring Mau Son Mountain, Lang Son, Vietnam, in a classic retro travel-poster style. Central focus on the mist-covered mountain range with rolling peaks, winding mountain roads, and old French colonial villas emerging through clouds. Cool, dreamy atmosphere with soft sunrise light and drifting fog, highlighting Mau Son’s unique highland climate. Subtle cultural elements of northern borderland life add local character. Harmonious color palette of cool blue, pine green, stone gray, and pale golden light. Clean graphic illustration with subtle vintage grain texture. Elegant vintage typography: “MAU SON – LANG SON, VIETNAM”. Vertical 2:3 layout, high-resolution, print-ready.