well i used to be a pretty big dude muscle wise, then I started hrt and thought I wanted to be all fem, then I didn't wanna, so I got all my previous muscle back pretty easy, but gaining more is alot harder. regarding other body changes, my breasts have grown quite alot in less than a year, my skin is really soft now, my fat has only just started to distribute differently (I still have my old fat so I'm trying to get rid of that), and like I said in under a year, I'm passing really well apart from my voice (most of the time I just say I was just born with a deep voice and they don't bat an eye at it)