水墨畫風的中國文化旅遊海報，描繪西安古蹟、河流與書法筆

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A refined Chinese cultural tourism poster on textured off-white rice paper with a large amount of negative space, featuring an elegant ink-and-watercolor brushstroke composition that curves upward diagonally from the lower left to the upper right like a sweeping river of paint. At the far left edge, show 1 traditional Chinese calligraphy brush entering the frame, its bristles appearing to paint the scene into existence. Inside the flowing brushstroke, depict a miniature historical landscape of Xi'an: 3 major architectural landmarks arranged along the curved path, including 1 ancient fortified city gate at the lower left with gray stone walls, arched entry, battlements, and a two-tier roofed gate tower; 1 grand traditional pavilion or palace hall in the middle with green-tiled roof, red wooden beams, raised stone platform, and stairways; and 1 tall multi-story brick pagoda at the upper right on a stepped base surrounded by sparse trees. Weave a narrow blue-green river or painted water channel through the scene, with dusty earth tones, scattered rocks, winding roads, tiny shrubs, and touches of muted autumn red foliage. The whole landmark vignette should feel like a handcrafted 3D miniature diorama blended with Chinese ink painting and relief sculpture, with delicate speckled paint dispersion around the edges of the brushstroke. In the lower left beneath the painted scene, place 1 large line of bold black Chinese brush-calligraphy reading "西安". Below it, place 2 smaller lines of neat Chinese text: "春风得意马蹄疾，一日看尽长安花" and "十三朝古都·丝路起点". Add 1 small red seal stamp near the text. Overall style: poetic, premium, museum-quality city publicity artwork, traditional Chinese aesthetic, subtle warm lighting, high detail, balanced composition, vertical poster layout.