You have made some really good improvements compared to your drawings in May. You defiantly have the idea of rhythm for the body's gestural movement. I would suggest looking into the anatomy of arms and legs. I've noticed some of them are a bit off. Understanding the shapes of arms & legs will definitely help in the long run. Once you understand their basic structure, you can simplify them while keeping the proportions of your drawing as well.
I hope this was helpful and keep it up, these look really good so far. ^W^
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