Gustavo, a native of California and longtime resident of Sacramento, was born in Santa Monica, California on July 27, 1970. The Artist spent part of his childhood living with his family in a Davis migrant camp. The family later moved to Sacramento where the Artist settled and now calls "home". Reynoso graduated from Jesuit High School and California State University, Sacramento and holds a degree in Civil engineering.

Gustavo has studied Art at American River College under well-known Artist such as Gary Pruner and Dan Samborski. He later studied under well known Portrait Artist Nita Petroske who he chose to follow and continues to learn from to this day. Reynoso's paintings center on autobiographical subjects that draw on his traditional Mexican heritage. His subject matter and style tremendously varied. His works also are notable for their dramatic use of color and exploration of universal emotional themes, such as joy, love, passion, tranquility and isolation. Although the subject matter of his paintings is intimate, it illuminates and transcends universal themes. His vision is simple and expressed with clarity, yet it encourages the mind to explore the possibilities of deeper meaning.