I can echo a number of other observations.
Anxiety changed. I still have it around people in public but some constant background anxiety just faded away on estrogen. It's hard to describe the feeling, or maybe more the lack of it. Kind of like my brain was always on edge even when I had good control of my emotions. With estrogen my brain is more relaxed. I don't know if that makes any sense to anyone else?

Emotions: first easier to cry for certain. I had always practiced keeping my emotions in check anyway so I don't know if there is a difference because I don't feel the need to or if they just naturally became more available. Things can make me cry easier. Even good things make me cry at times. I feels so good to cry sometimes. So different than before. My emotions flow with my thoughts seemingly completely fluid together. I don't perceive them being apart anymore.
Language: I am way more talkative now. Like WAY more.

There are times when I get started I can chatter on for an hour at a time. Words and feelings are easier to express specifically verbally.
Body Oder: yes it changes big time. When sweating I smell very different than as a guy. Down there,

yes DIFFERENT. My urine smells very different, very female. My crotch smells female just sitting down to pee. It seems the glands down there make more oil in the skin and this has the oder with it. The skin inside my thighs, like the armpit of the leg, has turned darker. It didn't use to be like that.
Of course body fat is different. More on my thighs. Upper legs don't have muscle tone anymore but more rounded. Lower legs have lost a bunch of width kinda of like my forearms have.
Reading others feelings is not work anymore. I just see faces and pickup on how they are feeling. I have noticed I am much more expressive with my face as well. Strong feelings of empathy when others are sad or hurt also are new. It's like a whole new part of my brain finally is working the way it was supposed to work.
Floof raised an interesting point in how she doesn't see shame in being trans since SRS. I am always avoiding public bathrooms these days. I don't feel safe in the men's room and but not going into the women's room because I don't know how cis women will react. I have had the thought that if I can ever get SRS I would feel like I was "allowed" to pee in the right place.