Honest opinion: it might be obvious, but 2B's ass is the best part of this drawing. I'd dare to say that, considering her anatomy in this case, it's neary perfect. So, great job on that!

You should work more on the rest of her parts, like her face, for example. The bandana covering her eyes and the hair both need more attention poured into, also.

The sword's fine, as well as her dress. The high-heel boots are good, too. It's the whole head part that kinda throws me off, sorry!
Please, do keep in mind that mine are only suggestion, I really just want to help! I've seen a few other works from you. And in ALL of them, the ass is spot on. Pretty much flawless. The bodies you draw are fantastic. I really liked 2B's animation and the Joi hologram, great stuff!

You've got what it takes. I believe in that! My humble advice would be to work on polishing your artworks a bit more. You're a diamond in the rough, and I can already see some shining coming from ya.
Keep it up!