That's actually a great method, and the one I usually recommend to people who have issues with their spelling and grammar.
Now, as for the character herself.
In the physical description, all of the opinions and little pieces of information should either be shifted into footnotes, or removed entirely. You have to remember, your opinion of "hardcore looking" is most likely almost entirely different from mine, and the reason she keeps her hair short couldn't matter less to my mental picture of her. tl;dr, Just remove everything that's not the description itself or at least move it.
I'd also like to see a bit more wordiness in general for the descriptions. You're trying to make it so that someone could draw her without having to talk to you (though artists always should anyway), so try to expand things a bit. "lithe yet strong form" could easily become "Misato has a thin, wiry frame with well defined muscles" for example, if you don't want her bulky. Also, please include distinguishing features of some sort. Everyone has a physical quirk of some sort, even if it's just that they're so completely normal looking you'd never look twice.
Also, if you could, please include the American measurements for everything as well. Most of our members and artists are American, and convertors are easily found online, so we ask you include both measurement styles.
Age you'll probably want to generalize a bit more than that. ~1 is usually more than enough for the profile, though including a birthday isn't a bad idea if you really want to keep track for yourself.
Under personality, the last sentence cuts off very abruptly. I'm also not sure I'm understanding it correctly. So she shows a harsh, cold face when she's working, right? Why would that keep people who spend almost all of their spare time as a group from getting to know her other side?
Likes and dislikes should really include more of a diverse range of things. Is cleaning and maintaining weapons the only thing she likes to do in her spare time? What kind of people does she like/dislike?
I personally prefer at least a full paragraph of history, but Wes feels it's enough, and you're headed his way, so I'll let it slide.
Under skills, the last skill you have (Equipment) should be Maintenance and Repair. You also have two skill slots which I would like to see you fill now unless you have a good reason to just skip them entirely.
Overall, the character looks pretty good. Most of the changes are just moving or rephrasing things, so don't get too discouraged. It's a very good first character thus far.
This character is pending changes.