Dr. Barrera's stage direction is characterized by her ability to modernize traditional works while respecting their artistic integrity. Her ability to navigate between the modern and traditional styles of opera staging has made her a respected figure in the world of performing arts. Dr. Barrera's career is a testament to her artistic vision and her talent for breathing new life into timeless classics, making her a sought-after figure in the world of operatic stage direction.

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Notably, she breathed new life into Mozart's Così fan tutte "a lo Cubano" and Purcell's Dido and Aeneas, infusing them with contemporary relevance and a fresh perspective. Her reinterpretations of these classics captivated audiences and critics alike, showcasing her skill in blending tradition with innovation. In addition to her modernized productions, Dr. Barrera has demonstrated her versatility as a director by successfully staging a more traditional rendition of Puccini's La bohème.