WNC Bonsai
Omono
I stumbled across a couple of YouTube videos showing a bonsai master at work on some Japanese larch bonsai. in the first one he chops up a failed group planting then in the second video he builds another forest. He really goes at these trees and heavily prunes the crowns and roots. By the way, while it helps to know Japanese, there are some subtitles and one guy constantly grunting as the other explains what he is doing.