I think CLaire looks really nice, but two things are bugging me about her. First off, it's a great action pose, but I still feel like there's something off in terms of balance here. Secondly, and more importantly, is her left hand, at the right edge of the pic. That certainly is a plausible pose for it to be in, but it seems to me to be a very awkward and unusual pose, and replicating it myself, it even seems uncomfortable. I'm imagining with this that he hand is turned to the outside of the image to grip something, and that it would be better if the hand faced the other way.
I realize that I may be interpreting it wrong, but if my second interpretation is correct, then her hand is out of line with the rest of the arm. I suspect moving it about one pixel to the left would solve the problem I feel is there, and it may be only the hand, and not the cuff/wristband that needs moving.
As a last detail, I'm usually uncomfortable with feet going too far opposite their leg, but I think that you made her right foot work well on that pose. Still, I think the boot might be able to stand some shading on the side.