 While there, he became associated with painters such as David Alfaro Siqueiros and Diego Rivera as well as with members of the writers group, "Contemporáneos".In 1974 he was called "one of the most interesting unknowns in Latin America [...] whose work somehow never attracted much attention, by rights he should have ranked with Carlos Pellicer or Xavier Villaurrutia.Perhaps because he was Guatemalan he never seemed to receive critical notice."