Andy,
the large Chinese elm that you show in this thread:
http://forum.bonsaitalk.com/showthread.php?t=16164
is a perfect example of the naturalistic style. You know very well that it did NOT grow exactly like this just by itself. You have spent a lot of time making it look like this by considering and possibly moving or directing every single little branch. But it does not seem to having ever been touched by human hands. It is very naturalistic, you can also say realistic which is the opposite to abstract. It is NOT NATURAL as you describe it yourself. Nature did NOT do this.
This tree was not made by someone who tried very hard to create something that looks like a bonsai. This was created to look very much like nature did it. And with great success.
Welcome to the club.
This is the state that a tree like this should be exhibited. It is just slightly overgrown and needs a haircut very soon. The trick is in grooming and licking a tree for years and then let it outgrow just a little to get this natural flavor and then show it in that stage. After the show it is groomed back and will look more abstract for a while again. Perfect treatment as far as I am concerned.
You may well deny that this is naturalistic, but that does not make any difference. This is like Kimura denies to do anything but classical bonsai. How about being menitioned in one sentence with Kimura?
BTW, it is about time we get the possibility to post pictures here directly.