 Eventually Ma developed a personal style, with marked decorative elements ("pine trees [...] strong as if they were made of iron wire", as described in a contemporary source).A characteristic feature of many paintings is the so-called "one-corner" composition, in which the actual subjects of the painting are pushed to a corner or a side, leaving the other part of the painting more or less empty.Aside from landscapes, Ma's surviving oeuvre includes many different types of works.