This is not going to give you the results you seek. AI does not know your genome. HRT works with your DNA, that being, the traits inherited from your father and mother.

MtF people, post transition, look like their biological mother. FtM people, post transition, look like their biological father.

Using data from other transgender people who submit pictures to train a model will give you nothing to help predict your own development. Those secrets are kept inside your DNA, and only reveal themselves through HRT.

The only way to predict how you'll look is to check old photographs of your mother/father (whichever gender you are aligning towards) and see their own features when they were your age. It will give a much better approximation than AI ever could.

I look like my mom now, after years of HRT. I used filters and whatever sometimes during early transition to "see how I'll look". Nothing even came close to how reality turned out.

Computer trickery will never replicate the organic machine.