I am attaching a couple screenshots of the 3d photo headshot conversion from http://cvl-demos.cs.nott.ac.uk/vrn/
I did do some very minor smoothing/sculpting of the original OBJ file after importing into Aspire. I also attached the original photo I uploaded (an old photo of one of my sons).
Amazing that the online software pretty much ignored my son's hand. The hair and the eye detail was ignored too (so it appears he has his eyes closed). Nevertheless, I am completely impressed that it is possible to derive any "somewhat decent" 3D qualities from a single 2D photo of a head.