Even though there is an angle, the left hand looks a tad bit to big. I really like the armoring, and think its lovely that you have done something different than the usual "iron brah" that most fantasy armor girls have! ^^ great, great, great details!
This is one of my favorites of your sketch work so far. My one critique is the proportions of the left leg. Is it just the armor that she is wearing? Because to me, through the thigh area seems a bit wide. It's still one of my favorites, and well executed regardless.