Proportion study

Trying to get proportions correct so I can get closer to realistic sculpts.

Key things I learnt:
-Cheek fat is positioned between nose parenthesis and cheek bone. (youthful cheeks have more fat)
-Splitting face into portions of 5ths and 3rds makes positioning elements easier.
-foreheads have a huge impact of a characters look
-facial planes, especially flat face cutting from the cheek bone to the lower section of the nose should be flat.
-widest section of the skull (back) is found about the ear.
-pointiest part of the lip can reach half or 3 quarters of the bottom nose length.