Admittedly, I'm a little confused on that as well. You seem to be quite hairy; even with lowish quality pictures, it's obvious that you've got a lot of facial hair. You'd think that people would stop and think "Oh, women don't generally have beards, so this is probably a dude."
However, I think that your face looks a bit feminine. I imagine it'll fix itself eventually, but it might not. The only thing that I can think to suggest is weight loss; that will definitely help speed up the process.
I mean, the only other things I can think of would be your voice and mannerisms. Since I have no idea what you sound like or how you carry yourself, it's hard to say if those affect it. But I imagine your voice is probably pretty low at this point, if you've been on T for years.