I am sharing the development of Adenium from 2018 onwards. When I bought it, it was having a thin stem and tall branches. Then, the two tall branches were removed.  Slowly, the caudex started thickening, and many branches developed near the cut. Allowed to develop and started wiring to give a style. Now it is a Shohin Bonsai of 9 inches with a thick caudex stem. Sharing the photos