These are from a book by photographer, Hans Silvester: Natural Fashion, Tribal Decoration from Africa. Published by Thames Hudson. They are from the Surma and Musi tribes of the Omo Valley in East Africa.
wonderful work from John Kenny 'Mynga' - from the Mumuhuila tribe of Angola. Notice the 2 shorter hair locks with metal beads close to the face, like ancient priestesses. Her face is reminiscent of the wooden statues of priestesses of Amun.