Nice work guys...
I know im thread necroing but i wanted to pipe up and say something about the cranium method.
It is technically a more accurate method as it is based off skeletal landmarks, that dont change as much.
So for example, the bottom of the ribcage, top of the hips, ect.
Whereas the head method is absed off fleshy landmarks that are affected by body condition. Like the belly buton, the nipples the bottom of the buttocks. This stuff is affected by weight and age, so as soon as you get a person who isnt 20 and fit, this method becomes less useful.
The cranium method is also used by archeologists to be able to check what age and sex skeletons were