Here I added a helmet in the shape of a piramid, some hair and part of the upper armored body.
In this step I added more details and the other arm holding the sword, I though that I didn't have the perspective to hide the left arm so I drew it.
Here is what I thought it was finished but was not very sure about the sword and added two mechanical arms in the back, one with electric power and the other with a handgun, giving her and incredible advantage
So I erased the sword, changed the hand position and gave her a rifle, something more suitable for war.
Again, wanted to add some ink work to this piece to see how it would turn out, so here I just outlined it with a ballpoint pen.
And here is the final result with all the details I could add with ink and some background explosions.
Thanks to 
