The International Press references him as “Musical Genius” and “synonymous of energy, knowledge and confidence of high artistic quality”. Due to his outstanding international career, Maestro Barbosa-Vásquez was named by ProColombia as Ambassador of Colombia Country Brand. Besides, he is a Professional Member as Opera and Orchestra Conductor of the League of American Orchestras. ​Guest conductor for the 70 anniversary of UNICEF concert, the Colombian Maestro has been winning international recognition since conducting in El Salvador (2014), his 1st. International Opera Conductors Competition in Belgium (Opera Royal de Wallonie) (2017) and the III Nino Rota International Conducting Competition in Italy (2018), in last both cases representing Latinamerica. Also, he was a special guest lecturer at the 11th European Orchestra Festival of (EOFed) and WFAO General Assembly (2018 - Norway) and special guest lecturer at the WFAO General Assembly (2019 - Singapore) also representing Latin America. ​Diego has been Guest Conductor of the Wabash Valley Youth Symphony (IN, USA), OCSA Symphony Orchestra (CA, USA), Youth Symphony Orchestra of El Salvador (El Salvador), Caldas Symphony Orchestra (Caldas, Colombia) and Choir and Founding Orchestra of Esperanza Azteca Program (Puebla, México).