Resurrecting this past but as a trans woman on HRT I can definitively say that SOMETHING happens when you go on estrogen. It softened my voice considerably and made it easier to adjust tone and pitch. So there's something to say about estrogen and is magical powers :)

You should post pics to document your progress and show us!

Oh wow that sounds amazingly good. Do you have any physical bloating or growth in your hips, boobs or tummy?