 In 1937, reviews of her work began to use words like "primitive" and to define her work as primitivist, these comments gained certain regional isolationism.Izquierdo painted a significant number of works with religious themes that fall into a category of imagery, about folk Catholicism or popular art or both.Some representations of popular devotion could be interpreted as religious subjects or as homages to the popular and artisan traditions of Mexico, especially rural Mexico.