I did what I could with your design, but I must admit, I'm not a fan of giant booby-mech-ninja girls. Also, it seems like you gained influence from the metroid character, what with the the long legs, and large upper body. However, her boobs are way to huge, in my opinion.
The design of the suit, in the upper body(the bra/tank top region), would, in reality, cause some spillage of boobs all over the place. And if not her breasts spilling out of the suit, there would most likely be some nip-slips. That, or her boobs are sagging way to much. So I just tried to decrease the size of her breasts, and got rid of the cleavage. I also added some shine to the black metal parts. I decided to also shorten her upper body, change the position of her legs, as well as add a head strap since her peak looked like she was wearing one before hand. Also, the portrait could use a little bit of work, as her face is way to small, as mentioned before.
Despite these critiques, I still think it was pretty well done. I like the way the hair was done. Despite the juggies, her design was actually pretty cool.