Oh wow the first heroine actually have a white clothes DLC. Both of these clothes actually seems easy enough to replicate, I'll give it a try and see what I can do. (this might be a wasted effort since the dev might add this as a dlc in the future). I can just use my created skin and made a few modification to create Rabiane's white clothes.
The one that will give me a headache is animating her braided hair ( 。 •̀ ᴖ •́ 。). (should I just make the hair black instead of braiding it? also should I make the eyes black?)
The weapon is incredibly easy to add since there is only 2 PNG to edit. Though I'm quite reluctant to make it since the hitbox would still be short while the weapon texture is long.
Edit:
I can't change an entire animation of an action, only the skins