Just a tip to make this a little bit easier whe redoing it, you should make the shoulders and the waist kinda having the same width (os maybe a little bit smaller), like this:
The trick to understand the difference between male and female anatomy is to think of women as triangles and of men as inverted triangles. When you give the character broad shoulders, it gives it a "manly" feel:
Sorry about the lame doodles. ^^' Anatomy is a little hard (and I shouldn't be the one preaching about it, 'cause I make a lot of mistakes as well), but it's really useful. I felt I improved a lot when I started studying it more seriosly.
(Off topic: It's a vulcan character! AWESOME! :D Extra brownie points for liking Star Trek. LOOOL
I have a vulcan female OC as well #geek)