Love it! But I have four small nitpicks however. ^^
First of all, her eyes are green. Secondly, she has long armed gloves, not short standard ones. Thirdly, you misspelled her codename. It's not ''X23'' It's ''X-23'' you forgot the ''-'' in the middle. (Perhaps you can do a little update on the drawing to change that?)
Lastly, I wish the picture could have been be bigger. Despite the small flaws you made, it's still a really good drawing, and I'd love to see it in bigger definition.