Personally, I do believe that self-acceptance is about looking in the mirror, analyzing your personality, and truly taking the time to find out which features truly do match with your personality (and figure this out without thinking of what society thinks, if you can). For instance, many trans have slight male touches to their face that they personally can't stand, but if they actually have a powerful personality, left-over male traits can sometimes give a woman a more powerful, dominant image that many natural women have in the real world. Or, if their personality is extremely soft and cute, they may know that more stages of FFS for example is right for them. The idea of accepting your appearance doesn't have rules, and there's no right or wrong answer when it comes to choosing to stay natural, or to elect for FFS or hormones. It mainly has to do with what features you feel are right for your personality, your goals, and what you want to display to the world. You just have to make sure that what you want is truly right for who you are!
For instance, a strong nose may be considered a masculine trait, but it can also give a woman a defined, intellectual appearance - Lady Gaga has a strong, prominent nose for example. A wide, square jaw is not always considered negative - Rosie Huntington-Whiteley indeed has a bit of a wide-jawed masculine look about her but is incredibly sexy! Even Kelly Osbourne pulls off a very rounded, husky characteristic very well and with better style and hair choices, she's looking incredible as of late. Now, none of these women are reasons to ignore negative features if you truly do look like a man, and you may need improvements, but always just remember that what is considered "stereotypically masculine" may not hold true for everyone!