Dayanna Grageda ( born March 5 , 1992 ) is a Bolivian-Australian Animal scientist , environmental advocate , model and beauty queen who was crowned Miss Earth Australia 2015 and later that year won the international title of Miss Earth Air 2015 . Dayanna holds the highest recorded placement for both an Australian and an ethnically Bolivian beauty queen in Miss Earth history
Miss Earth Air 2015
Miss Earth 2015
Dayanna Grageda