Hi!
Here is a portrait that I have been attempting. Still working on texturing and shading. The model was sculpted in ZBrush and rendered in Maya using Vray. All textures are hand-painted in ZBrush. Feedback and suggestions are more than welcome. Also, feel free to ask anything about my process. 
ZBrush sculpt of the head:
Polypainting in ZBrush:
The t-shirt sculpted in ZBrush. I pieced together some photo reference to make a texture and applied it as displacement on the sculpt.
