You don’t need to know anything about art to be stopped in your tracks by what’s on the walls of El Museo del Barrio these days: the fantastic ballpoint pen drawings by Consuelo (Chelo) González Amézcua (1903-1975), a Mexican immigrant to Texas; the stupefyingly intricate collages of Felipe Jesus Consalvos, who was born in Havana and died in Philadelphia, where in 1983 his life’s work was found in a garage sale; and the pictographic paintings of Puerto Rican-born Eloy Blanco (1933-1984), who came to New York City to study art and learned from fellow Latinos about the Indigenous Taino culture of his homeland — a culture he ended up making…