Postal Van Through the Golden Valley

Generate exactly one finished image, never a collage, grid, or multiple variants. A hand-painted gouache illustration of a tiny red postal van crossing a narrow bridge over a jade river in a vast pale golden valley. Foreground seed grasses, layered lavender mountains and flat cream clouds establish spacious depth. Visible matte brush marks, strong tiny focal subject, landscape 3:2, no lettering or signature. Original visual concept, carefully resolved composition and materials. No watermark. Text-to-image only; do not use previous conversation images as visual inputs.