“...what makes these singers especially engaging and pleasurable to listen to is their youth and the singular freshness of their voices. This was achingly true of the sweet and pure soprano of Teresa Castillo, who sang the roles of various Princesses and Gretel.”
-Jamie Robles, Bachtrack.com

"Soprano Teresa Castillo was a particular standout, bringing power and florid elegance to a range of roles that included Rapunzel and Gretel.."
-Joshua Kosman, SFGate

“Ms. Castillo injected the occasional high note when needed in ensembles and looked lovely in her wedding dress, and she was very fine in her prideful song, “The sun whose rays are all ablaze..”
– Charles Jernigan, Jernigan’s Opera Journal