tons of shading and lil shinies

i m not a pro at it but i just do sort of under the arms and places where the light would be blocked. i also of coure use a reference. for the eyes i do darker at the top where also the lashes and eyelid would be over the eye, shading it a bit. for the bottom of the eye i do lighter, and the middle is in the middle, and for the hair i usually do like locks with the darker shade and highlight the middle part to add volume (i didn't do that here). for the shines simply use light gray with the paint roller and put little dots around the highlighted areas and it makes it look preetty so ya