From Dong Ho painting is the cultural beauty of folk art - Vietnamdrive:

Dong Ho painting is a traditional Vietnamese art form. This type of painting has unique artistic value and breath-taking expression of the folklore of the Northern region of Vietnam.
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Dong Ho paintings have a long history, dating back to the 17th century. At that time, the painting village had about 17 big families, all of which had the main occupations of painting and making paintings.
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All Dong Ho paintings are printed from wooden engravings. Each color on the picture will have a corresponding woodcut pattern, even the black-color version that creates the basic features of the picture must have a separate copy.