Leosghost - 12:33 am on Nov 6, 2012 (gmt 0) [edited by: Leosghost at 12:39 am (utc) on Nov 6, 2012]
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 ..
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]