Who is the author of the Chinese painting The Riverside Scene at Qingming Festival? Which dynasties and places did they reflect those life scenes? Please name two of them.

The Riverside Scene at Qingming Festival was written by Zhang Zeduan, a painter in the late Northern Song Dynasty. The whole painting is about 24 cm wide and 528 cm long. In the form of a long scroll, it depicts the bustling scene and natural scenery of Tomb-Sweeping Day, a traditional festival in China, the capital of the Northern Song Dynasty and the banks of the Bianhe River.

There are many figures in this painting, including intellectuals, farmers, businessmen, fortune tellers, doctors, monks, telegraphs and other figures, as well as donkeys, horses, cows, camels and other livestock. There are different opinions about how many people are painted in the painting, some say 500 to 600, some say more than 700, and some say 1000. Various activities and plots are interspersed in the painting, such as going to the market, buying and selling, hanging out, drinking, chatting together, pushing a boat, pulling a car, riding a car, getting married and so on. These are all vivid; The whole painting is as vivid as the vast Yuan Ye, the vast rivers, nails and rivets on boats and cars, and small commodities on vendors.