Career
He was a professor of the Real Academia de Bellas Artes de San Fernando, and a contemporary of Benito Arias Montano and Juan Bravo Murillo. Hermoso was a student of Gonzalo Bilbao and José Jiménez Aranda in Seville. He moved to Madrid in 1901.
He lived in the same place for several years with Daniel Vázquez Díaz.
Together, they had attended classes taught by Jiménez Aranda in Triana, Seville. In 1905, he exhibited El Colegio e Hijas del terruño at the Exposición del Círculo de Bellas Artes which was praised by Francisco Alcantara and José Francés and also traveled to Paris and Brussels.
In 1912, he exhibited at London. In 1934, he exhibited in Argentina, Chile and Brazil.
During the Spanish Civil War (1936-1939), he befriended the painters Fernando Labrada and Francisco Prieto Santos.