The left arm is way too blurred, and does not look like movement at all, and the right arm is too sharp, it looks like the image was cut out with scissors there. The motion blur isn't constant with the whole body, and doesn't make sense in the places its in. Also, I'd say you still need to work on your poses. All of the positions you paint your characters in seem very awkward and unnatural, and the perspective will be completely different in certain areas. Hope this advice helps, good luck.