I messed around with a character maker and attempted to make the characters in the Book of Human. It's not completely accurate but I think it conveys the general idea of their appearance.
Armun
150Please respect copyright.PENANAdzDoSgCeBj
Arbella150Please respect copyright.PENANAizRbCElasa
Filiny150Please respect copyright.PENANAWLXJuNU1A0
Gatyk150Please respect copyright.PENANAaXb2xJCkEd