I'm sure you would do fine. I never had much for muscles, but I was always big too, and I will never cease to be amazed how much HRT/weight loss changed my appearance. With some time on HRT, your muscles will fade away (your neck will get much thinner too

), you'll develop feminine fat distribution, you might even shrink an inch or so if anecdotal evidence is anything to go by. Your face isn't actually that masculine to begin with, but HRT will make it look ever less so, and then if you grow out your hair... Like Dena said, there is definitely some potential.