Your lines are very smooth and clean, it really tells me what those figures are posing. I saw in some of your drawings you didn't plan the size so the head was cropped at the page. You can add more variety to your line quality and exagerate some of the poses to give a stronger sense of movement.
Line quality: thick vs. thin, light vs. heavy, dark vs. light, straight vs. curvy
It's a good start, keep working!
Here's a good example I find on pinterest