A set of four Eastern poetic negative space posters based on classical Chinese poetry: 1. 孤烟：一线孤烟，一轮落日 (Lone Smoke: a single thread of smoke, a setting sun) 2. 孤城：万仞白山里的一点朱红 (Lone City: a single dot of vermilion within towering white mountains) 3. 长风：斜向风势托起一叶云帆 (Long Wind: a diagonal wind lifting a single cloud-sail) 4. 江雪：一线寒江，只留一叶孤舟 (River Snow: a thin cold river, only one lone boat remains) Extract the lines, points, shapes, and spatial relationships from the verses, using fewer elements to support the negative space. Suitable for cultural posters, book covers, exhibition visuals, and composition design references.