Zbrush Creating head from Concept Art need opinions!

Unity Engine
1

Hello guys,i am trying to create a head from a concept art for my game so…please tell if i got close to the concept art…without considering the hair should be darker brown and the fact i did the eyes bigger(eyeball couldn’t fit) and sorry for the quick polypaint!:

Concept Art:

1454899--78915--$1234.jpg
1454899--78915--$1234.jpg620×596 68.3 KB

1470588--80810--$boy fac.JPG
1470588--80810--$boy fac.JPG1076×815 19.8 KB

I use Zbrush for about a month so…
Should i retopology the head and then unwrap and then put poly paint in it?
Could someone give me analytic info about this!

2

Make the eyes a separate ztool and build the eyelids on the head mesh around the eyes. Currently, I get nauseous looking at her eyes.

3

Thanks ok!I will follow your advice!
Ohh and it’s boy!