Ha nice dude, I was gonna crit that you should analyze for motion and pose more in your gestures, looks like you already figured it out though!
Looks like you did a few drawings from a soccer/football game in the last post, I would definitely recommend you KEEP DOING THAT. Sports gestures are so great because you have context for the pose, you know what its purpose is and what poses come before and after it. Knowing the purpose and story of the pose gives you a goal to achieve,a way to tell if your gesture is successful or not because you will either have told the story with the drawing or made a confusing sketch. That's why I caution you to avoid posemaniacs and other timed gesture sites, their poses are all weird artsy stances that nobody in real life ever makes, so there's not much to learn from drawing from them imo. I'd recommend drawing from old vaudeville/silent era movies as well if you can, guys like charlie chaplin and buster keaton were masters of telling the story through their poses.
Keep doing the gestures and focus on quality not quantity. If I find a pose I really like I may wind up drawing it 7 times to try and really capture what I like about it. It's not a race to draw 1,000 different gestures, it's about how much you can learn.Try to ignore details and anatomy, you can make a very successful gesture with just a circle for the head, a stretched and squashed line for the torso, and 4 bendy tube shapes for the limbs.
There are a couple books by a disney animator named Walt Stanchfield called Drawn To Life you may want to pick up, they're full of tips and handouts from his gesture classes and they're a huge help!http://www.amazon.com/Drawn-Life-Classe ... 0240810961
and looking at storyboard artist's gestures would be great too, those guys are awesome!http://mattjonezanimation.blogspot.com/search?q=gesture