Yes, but it is a very subtle thing. I have SUCH a more masculine face after 9 months on T, but I honestly can't tell you what the change is. It happens so subtly, it's hard to describe. But as you can see it's a big change (all these pics were taken without any careful angling or anything--just quick selfie shots, aka why the quality sucks lol):
Pre-T (10 Months Ago):

9 Months on T (Yesterday):

Pre-T (10 Months Ago):

9 Months on T (Yesterday):