I know you meant this in a kind / supportive way so you’ll probably be receptive to this: commenting on whether someone is “passing” or not is super rude in the trans community. Just say she is beautiful if you must comment on her appearance

Edit: I usually just assume best intentions but looks like I was wrong (I don’t dig through post history typically). According to those below me you’ll probably just keep being a crusty fucker; be better dude wth. We have enough assholes around here and being kind is a choice we can make everyday.