These sketches don't quite catch the motion yet but just go ahead and make like a dozens of those and you will get it down. I finished a whole stack of paper of poses before I really got it. I'm still far away from perfect tho haha
I absolutely agree that the first figure is not as fluid, I sometimes have trouble when the legs are just stretched out.In these cases I find it really hard to find a motion within them
Love it but i feel like the shadows are a bit too big.. but overall awesome job