@Stan` How much is the file size limit for source files or for posting on the forum ? the body blend file is almost 2Gb but i like any1 could have it here and experiment if they know how to sculpt and bake.

At least the baking test work's fine. Ignore the missing hand's is just a test of preliminary for skin shader's with norm maps for new head's:  

Was there anything you think I should change?

For skin tone issue i'm experimenting with a toga:  

i would like to figure a better way to make Spiky hair a plain mesh like the hair of Guile from Tekken: But the hair has been the most complicated shape of baking in blender because from geometry nodes it looks beautifull but it only work's as hair cards. i removed noise from hair normal map but left it on the beard or short hair or it will look plaing wich it isn't the objective.