These are all ones that other people had in the show today (above ones aren't mine). I have around 15-17 trees myself and I just about always buy nursery stock like shrubs and hedges such as boxwood, junipers, ficus and such and then start working them into bonsai over a few years. Yep that's one thing with bonsai trees you have to be sure of the proper season for repotting, root pruning, branch pruning etc or you can lose them.