Introduction to Yinglong's Painting of the River and the Sea: The sculpture seems to be standing on the Yangtze River. The young Yu, heroic and energetic, holding a water-controlling artifact, directs Yinglong to dig rivers and guide water into the sea. Yinglong has two wings, its front paws touch the ground, its back paws fly into the air, and it draws the ground with its tail, forming a river.