i dunno of it is any help, but the face maker program uses a system of key points, dots, similar to Toms sketch above. Overlay your model from a front and profile view and mark the key points, ie left and right of each eye, bottom of chin, width of cheeks, ear height, top and bottom of each lip and the width of the mouth ,nose etc, the more points you match up, the better it will look, and of course as tends to happen, once you apply a texture to it, it will look completely different lol

OS: Windows7 64-bit Processor Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz, 2401 Mhz, 2 Core(s), 4 Logical Processor(s)  6GB Ram
Poser: Poser Pro 2012 SR3.1 ...Poser 8.........Poser5 on a bad day........
Daz Studio Pro 4.5  64bit

Carrara beta 8.5

Modelling: Silo/Hexagon/Groboto V3
Image Editing: PSP V9/Irfanview
Movie Editing. Cyberlink power director/Windows live movie maker

"I live in an unfinished , poorly lit box, but we call it home"

My freestuff   

 link via my artist page