Congratulations on the orchi. Some readers are probably looking that up right now, and the men are cringing.
Some people get an orchi because they don't like the effects of the anti-androgens on the body long term. It also lets them get away with smaller doses of estrogen which is safer. Anti androgens are not going to be as effective as eliminating the main testosterone source as in an orchi or SRS.
I don't think the body hair goes away, but it does become finer and less apparent. It will probably get better
still after a year or two.
I had laser on my arms and after a while a lot of hair still came back. It probably helped to thin it out a bit though. My main concern was my hands, and I did not need hairy knuckles, since I am conscious enough about my hands as they are.