Product:   Child Angel Wing Liturgical Dance Drapey Pullover

Question:  We have 2 15 year olds, a 12 year old, 2 10 year olds, a 7 year old, a 5 year old , and a 6 year old what sizes should I get for the 10, 7, 5, and 6 year olds? Also what sizes should I get for the 15, and 12 year old?