Really nice work! Did you make your own blanks? The green one is gorgeous!
Below are links to two threads/articles you might be interested in. This first link has postings by different pen turners and what they wish they had known earlier: http://www.penturners.org/forum/showthread.php?t=46654
Here is another link - a PDF on the acronyms used here. I am sure you know many but this will help with those you don't.