Beautiful picture. I love the mechanical way the armor is moving instead of just digitizing into place, which makes it much more realistic and shows you put time and effort into your work, not just went the lazy route. I also like how you aren't making her blatantly feminine, but more the fierce and deadly bounty hunter she is. Most of what you see out there just sexualizes female characters, rarely showing them in their true character and element. You clearly don't take the low-road in your artwork and I want to praise and thank you for that.
And no, I'm not a chick complaining about women being sexualized; I'm actually a guy. I just have respect for members of the opposite sex, including those who aren't real, and Samus was among the first, if not the first, female characters who held my respect, which she still does. (I deny Other M's very existence. They absolutely butchered her character in that game. I'd sooner believe Metroid Pinball was canon over that garbage.)
Nice pose, and I love that her suit is sort of disassembling itself Iron Man-style. I also have to thank you for not making her boobs comically large like a lot of artists do. The textures are really neat, too.