These heads were done back in 2004, for the Dear Anne movie that was cancelled. They were modelled in XSI 4.0. These are just base shapes before ZBrushing. I had left the company before the details were being added onto the models. The hair is just stand in geo to get the feel for the character.
I had worked with Mauro Pietro Gandini - ( or Porpisio as he likes to be called ). You can see his work here http://www.porpisio.com/