After computer break part 2: Construction

Here is my study of head construction from the time my computer broke. Again like the last post it will hopefully in the order of which they were drawn and end on the most recent:

Here are the reference images

http://johnkstuff.blogspot.com/uploaded_images/pbanimation02-745508.jpg

I also have the book in my house so I'm not relying on these grainy scans.