Honestly, if you pass in person, you're going to appear terribly young. You've got very fine bones and very smooth skin. A very pretty face, really. =D
Actually, generally, I would say that probably your voice and mannerisms will be the biggest indicators. If you have a relatively male-sounding voice and the generally "masculine" mannerisms, you'll do great. If not, you might be reaching.
I'm also pre-T and don't pass at all, due to my voice. I look about as male as I can, all things considered, but once I open my mouth I get "ma'am"ed consistently.
The chest looks fine. Nothing obvious. As far as "most masculine", I would say the second and third pictures take the cake.