Orc bust Sketch

Toby hynes orc bust sketch 01
Toby hynes orc bust sketch 02
Toby hynes orc bust sketch 04
Toby hynes orc bust sketch 05

I'd not done anything Orc related for the best part of a decade. So I thought an Orc bust would make a nice Zbrush sketch to do on the train.
Still want to add more skin detail, veins etc. Maybe add a helmet or even a body. Will it actually be an Ork?