Passport masks in Africa were used before the modern day passport was invented, to identify which tribe or country people belonged to when moving across Africa. All the different tribes and countries identified themselves with their own special colors and symbols often incorporating birds and animals. Mens and womans masks differed. Most masks originate from Central- and Sub-Saharan Africa.
This image is, excluding the passports, the portrait of the Afro-African and the landscapes in the 4 corners, compiled out of 18 different (transparent) layers for the desired background.