[Benji]

Rule 27. (Couples or Group Portraiture) Have No Head Directly Above Another-All heads should not only be at different heights but also not directly above (or below) another subject. The eyes of the subject that is lowest in the group should be at about the same level as the chin of the next highest subject. For example in the image below note the eyes of the young lady at camera right are at the same level as the chin of her older sister at camera left. You may have to have someone take off their shoes or stand on something to get this effect. Lots of photographers use old hard bound books with the covers taped together with gaffers tape for this very purpose. On book will raise someone up about 1 inch, 2 books will raise him or her 2 inches!

Benji