Leosghost - 12:33 am on Nov 6, 2012 (gmt 0)

Either buy a stock portrait image..or pay an actor to sit for a portrait ..or
Look into facegen..now available as a free software ( demo download )..with enough tweaks ( and maybe a little work in photoshop or corel painter )you can create a portrait face with it that will probably do what you want ..

Comparison of some basic 3d software here for newbies at 3D and 3D portrait software ..
[relativitybook.com...]

Not one of my sites ..just a place that I point beginners to..simple explanation of face generation software possibilities from free or cheap software..

Autodesk also have some stuff ( from free to price of a small car ) the learning curve is steeper though..

Then there is Zbrush ( which I love ) and others..

[edited by: Leosghost at 12:39 am (utc) on Nov 6, 2012]