Brian! I'm replying not only because this is such a great progression - and with one of the mainstay bonsai species that I never had the skill to master well ...

- but because I didn't realise you were also a writer/photographer/publisher of a bonsai book! Kudos! And thanks for all your great editions to this thread (and this site!).
On my itinerary for possibly touring the country when I return home soon is a stop in Clemson, S.C. to see my older sister - my only surviving first degree relative! Alabama, where my maternal grandparents used to live near Montgomery, may not be far out of my way since I'm likely on my tour to head south first and re-visit and re-connect with my beloved desert haunts like Taos and areas of Arizona, as well as old Buddhist connections and friends in the Dallas area further east. It would be great to stop by and meet you and see your work first hand if that would be OK with you - let me know and we can discuss it further if that's OK with you. If not, for any reason, that's OK as well, so just let me know.
Once again, I greatly admire you finesse and artistry with JBPs - the king of bonsai material! Gorgeous trees you've shown here!
I'm curious, as well, for myself and others here: in the first picture of this tree, can you point out what area - or areas, or what structure or whatever - you first saw in this tree that led you to choose it above others, and which you felt was the most promising hint of it's future beauty id developed properly. Sorry if that's in the book - just tell me to go purchase it!