There were many paintings by Li Cheng and Guo in Song Dynasty. China's landscape painting techniques of reconciling the Song and Yuan Dynasties have achieved great success. After Yuan, Ming and Qing Dynasties, landscape painting was obviously not as good as Song and Yuan Dynasties, and there was no heavy sense of history and culture in Song and Yuan Dynasties. Painting in Song Dynasty showed unprecedented richness, exquisiteness and realism. Paintings in this period are further divided into landscapes, flowers and birds, figures, religious paintings and miscellaneous paintings. Due to the diversity of painting styles and themes, the techniques and theories of ink painting reached a peak with the development of landscape painting and flower-and-bird painting in the Five Dynasties and the Song Dynasty.