Landscape with gibbons and cranes

Depicting, in the "blue and green style," two cranes, and a total of eighteen gibbons (black, white, gray and brown). Among the gibbons are a mother and her children. They are distributed in a wooded landscape, with pine trees, flowering trees, and pink bamboo, and with a stream running through it and two waterfalls. Some of the gibbons are climbing pine trees, picking berries, catching fleas, and forming a chain from a branch to catch a crab. Forged signature, two seals.