This is an interesting website, I had no idea it existed. So, I plugged some pics into it to play around.
I used my Virtual FFS submission photo - which was pre HRT of any kind, with just some hair growth. 100% masculine.... yay... then I used the VFFS after photo, and that got me 96% masculine. Okay...
Then some pics from when I started trying to go out in public and do makeup. That's when I found the breaking point. 45% masculine /55% feminine. So apparently it was when I started to smile. This says something either about their facial recognition system or about my face.
As for seeing my face in the mirror? That would be the last few months or so. So about 1 year into HRT and 6 months into full time. It's kind of... trippy, actually. Still not used to it, it's wonderful but unexpected.