My current aim is to continue studying head anatomy and delving deeper into the mysteries of blender. It's been quite the learning curve but very fun (also time consuming). I begin to understand the appeal of sculpting busts and why people did it in ages past.
Current project: White scars space marine head for a potentially eventual white scars army after reading Horus Heresy: scars.
I used this image of GW's Kosarro khan head as reference

Attempt: Number 1

needs a little more cheek fat under the eyes and nose is a bit too wide.
facial hair version to come.