You about got the gist of it.

The symbol can be kept if it's a family symbol instead, but if it's a personal one it doesn't mesh with her personality that well. And a little bit more explanation on her semblance is never a bad thing.

The names are ultimately up to you for her weapons - if you prefer Break and Keep then go for it. And diagrams are always fun, but there's no need to rush.

Edit: Oh wait. If you can come up with a definitive height rather than just saying very tall, it would be great too