The Airman Sculpt WIP

Looking for time beetween the commission works for work on this new sculpt.
At the momment I have totally modeled the meshes in Mudbox for the googles and the aviator helmet. Now is question to continue wit the fine details in every part of the helmet/googles.
I am already thinking in the face for this bust.

Sergio gabriel mengual airman wip7
Sergio gabriel mengual airman wip6
Sergio gabriel mengual airman wip5
Sergio gabriel mengual airman wip3