Cristina Pérez Galcenco -- an international runway model -- has died at 21, according to media reports. Galcenco's body was discovered at her house in Malaga, Spain on Tuesday, February 3 ... her cause of death appeared to be natural, several outlets reported. Spanish newspaper ABC reports Galcenco had moved to the city of Malaga to enroll in a class at a school. In the past few years, Galcenco had been strutting down catwalks from Madrid to Milan to Paris to London -- even locations in China.