Ironically, I hardly have any pre-transition photos where I'm not smiling. When taking photos people always tell you to smile, so I always did, whether I was feeling it or not. I have more non-smiling photos from the past 8 months than the entire rest of my photo library combined because now I've started to just take random selfies sometimes and don't always feel the need to force a fake smile on.
Also YES nobody talks about the looking younger part, I don't think my face looks all that much different but it 100% looks dramatically younger and it's absolutely crazy. I've de-aged by multiple years, on multiple occasions in the past months I've been introduced to strangers alongside my brother (4 years younger than me) and they've assumed I'm the younger brother. Feels really weird, but I don't dislike it ¯\_(ツ)_/¯