Ok - honest opinion?
Right - first two pics very good indeed 10/10 - no problems there. I agree from those two pics you look excellent.
Last pic definitely needs work. To my eye there is something very wrong about that pose. It's something to do with the position of your legs, feet and the way you are holding your arms. In fact the whole body posture is wrong somehow. It looks kind of squared up and too solidly "there" if you see what I mean. I don't know if that makes any sense I'm at the edge of conceptual language here.
Now DON'T get worried about this because mostly it will come naturally as HRT redistributes your body fat and weight and also you will just get used to things so really please don't panic at this stage.
Also bear in mind that mine is a trained eye, so don't go getting all down about this because I have seen a LOT LOT worse, but to be honest in that last pic I would have picked you out in less than a second if I didn't know you.
Sorry

I am really not trying to be unkind here but you asked for honest feedback and I see no point in sugar coating it or you simply won't learn anything.
The good news is you did LOADS BETTER than many do and I'm sure you will perfect it all very soon.