My SBS's can be a little rambling, the thread starts with some background notes to the bust and review information from my co-host Dr Mike Thomas and reviewing the full thread got to admit it isn't a very comprehensive SBS sorry. You will find my earlier attempt at the bust here: http://forums.delphiforums.com/medrenfig/messages?msg=1145.28
For a variety of reasons I didn't like it and reworked the face and helmet, prior to getting stuck into the pelt. Any specific questions don't hesitate to post a message over on MedRom or here, what ever suits.