The income of oil painters in the Republic of China

Do you want to ask the question "What is the source of income of oil painters in the Republic of China"? The income sources of oil painters in this period are as follows:

Oil painters in the Republic of China mainly concentrated in Shanghai, Beiping, Nanjing, Tianjin, Chongqing, Guangzhou, Chengdu, Hong Kong and other places. During the Republic of China, few oil painters made money solely by their own paintings and calligraphy works, and most of them had other fixed occupations or part-time jobs. Many of them work in fine arts colleges all over the country, some as professors or lecturers, and some as part-time professors or teaching teachers.