The artist proposed a theory of New Ukrainian Art. According to art critics, "the basis of Boychukism is the creation of a national style, which is characterized by compositional clarity, high plastic culture and excellence". Boychukists developed a "concept of monumental style, in which the ornamental flatness, which is characteristic of Byzantine frescoes, is organically intertwined, with a strict and balanced, rhythmic and color harmony of folk iconography and Ukrainian folk paintings".