The drawing feels odd/unbalanced.
But I think that's the charm point of it.
+ I love the arms and legs.
I love people who pay attention to the muscle flow on ladies arms.
especially when said lady is a brawler.
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7/7 stars an keep up the goodness!
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Edit: Well, "unbalanced" in the sense of posing I'd say.
The lower, mid-section and the top give off conflicting action lines.
In a whole it nicely conveys the idea of the boxes being unstable in motion.