One of the first things my therapist asked me to do when I started seeing her(four weeks ago) was to determine how I saw myself in the future. Which is really how I see myself now, if this male body wasn't getting in the way of my self image! And that woman I defined was strong, confident, jeans, button-down shirt, short but fem hair, mid-length nails, boots with heels, a B-cup, hips, but not super curvy, light makeup. Not a girlie-girl, but not butch either. And my therapist said that she could see that in me.
Just because we may identify as female, doesn't mean we need to surrender to the societal norms of femininity. I think we all have aspects of both in us to varying degrees, and we should express each in an amount that makes us feel right. Makes the physical match the the mental/spiritual.