it looks pretty nice any changes is up to you, if you wants some tips what I normally do it look at historical armors or I take inspiration from games that I like (which tends to be Halo). If you want her to use something with the rapier, personally I'd go with a parrying dagger idk if you've seen my weapons project but I made one for Weiss so if you wanna go something like that go ahead(or if you wanna use my design go ahead just credit me) but if you wanna go with some defensive options I'd suggest a buckler.