Marianela was born in Rawson, Argentina, on November 1, 1975, and studied Fine Arts at the National University of the IUNA, and the Prilidiano Pueyrredon School (Buenos Aires). Between 1995 and 2007, she exhibited her work in her native country (Rawson and Buenos Aires), Spain (Girona, Barcelona, Menorca), and once at the Art France in Lavaur, France.