In 2006, after a major personal exhibition set up in the city of Florence, he received the nomination of Academic Correspondent of the Class of Sculpture, from the Academy of Florentine Design Arts, founded by Cosimo I dei Medici in 1563. In the long history of Academy also named as Academic Correspondents: Michelangelo Buonarroti, Titian, Tintoretto, Palladio and Galileo Galilei.
From June to November 2009, Deredia creates an important personal exhibition in the city of Rome: 60 sculptures are located in three museums of the city, in the main squares and around the Coliseum. For this occasion, the Roman Forum opens its doors to contemporary art by hosting 10 monumental sculptural complexes by the artist along the Via Sacra.
In 2015 Deredia holds an important exhibition in the City of Arts and Sciences in Valencia and in 2016 he continues his world tour in Mexico City, where he places monumental art works in the most significant places of the Latin American capital