The trunk of the bonsai should be good. The trunk should taper is correct as stated by the effects of nature. In short, the trunk should be the impact of the old nature.
The trunk of the bonsai should be improved. Stems should be tapered, as stated by the effects of nature. In short, the trunk should have the old nature.
The stem of the bonsai should be improved. The stem should be tapered as accurate as stated by the impact of the nature. Short term effect of stem should be old nature .