Career
Mission International 1979
Subsequently she took up a career in fashion, magazine, catwalk, and commercial modelling, was featured on national and international magazine covers, and toured Europe and the United States. As an actress she has played parts in action and dramatic films, including the title role in her own bio-picture, and has become a television host, film producer, and celebrity endorser. In 1986 she was first runner-up in the Supermodel competition and was described as the "Most Glamorous Woman in Italy".
She has appeared in the Binibining Pilipinas World of British Columbia 2004 and World of Canada 2004 pageants.
Marquez is a modeling and image-enhancement coach. She trained Ruffa Gutierrez (Mission World 1993 2nd Princess).
Charlene Gonzales (Mission Universe 1994 Top 6 finalist). And Miriam Quiambao (Mission Universe 1999 1st Runner-up).
She has been a judge, coach, commentator, or host in beauty pageants, modelling contests, and talent-search competitions.
Recently, she opened a modelling school for training models, beauty pageant contestants, and actors. In a 2000 poll, Marquez was voted as the "Most Beautiful Mission International", and in the television magazine show, Ang Pinaka (Top Picks), she was ranked the Philippines show business number one "most admired beauty queen". Marquez endorses, and is the face of, the Psalmstre line of beauty products.