Modernism is considered to have ended with "Poemas en menguante" (1928) by Mariano Brull, one of the principal representatives of pure poetry in Cuba. Two nearly divergent lines developed in the course of the avant-garde: 1) the realist line of African, social and political themes in which Nicolás Guillén excelled and 2) the introspective and abstract line that had its most recognized representatives in Dulce María Loynaz and Eugenio Florit. Midway between both tendencies lies the work of Emilio Ballagas, the poet who, according to Luis Alvarez, caused the neo-Baroque of José Lezama Lima.