Seriously though, many bonsai shows in this country rely on a large volunteer task force to make it happen. These are mostly composed of local societies. And within these small clubs, it tends to be a small nucleus of people who will consistently volunteer their time and effort to the furtherance of their hobby.
Here are some of the guys who made it happen; in case they never have the spotlight shine on them, here's a big 'Thanks for all your hard work, guys'. After all that hard graft, it's time for a little photo op. Ask the dudes what sort of hours they put in.
And BTW the larch group looking on these jokers is by Craig Coussins.