Looking fantastic. You know what you are doing. Love the stocky pot you planted it in.
Keep as much growth around that trunk as possible. It's developing an amazing wide taper and nebari. It has the shape of a grand ancient oak tree with the many upward fan shaped branches. Keep as many primary branches attached to the trunk as possible. They are all spaced out enough to make the trunk visible and appealing.
RE: Satsuki Azalea Bonsai Update - year 2