I love your fluid lines - you're really exaggerating forms and making them dynamic, and so they're coming across as really fluid and organic. I think one thing you could focus on is making the forms more readable - gesture is all about capturing the main essence of the pose - so taking an extra second or two to really study the figure before you start might help - I'm also guilty of using a lot of lines when I do gesture, and I'm trying to reduce the lines I put on the page and make them really fluid and make the gesture readable. I hope that makes sense! Proko's videos on gesture have been tremendously helpful for my gesture drawing - you can find them on YouTube if you're not familiar.
