Bill,
Great work.  Awesome, actually.  Thanks for the excellent tutorial and photos.  You really should write a book on your techniques and design concepts.
I've done a bit of turning, mostly bowls, spindles and lamps, but never any fancy segmented items.  I note your avatar contains a Festool CT vacuum and Boom Arm, so you are obviously interested in dust collection.  HOW DO YOU COLLECT THE DUST AND SHAVINGS FROM A LATHE?  I have a "big gulp" plastic funnel which I have used with my mitre saw and my my radial arm saw (before I sold it), but have never tried it with my lathe (Shopsmith). 
Dave R.