I just absolutely love the subtle and insightful gestures in some longer poses, ventostrinidad. But I've got one small critique: I don't really got enough of the strong action in the poses and attitudes. Why don't you pick up a copy of two Walt Stantchfield books. If you are ready and you are willing to become a traditional hand-drawn animator, be sure to click on these links and buy them:
Drawn to Life Books 1 And 2
The reason why it's because, it's from a series of lecture notes all completely piled up into two different volumes; and, it's got some very applicable gesture drawing skills for all sketching, not just animation. Hope and sweat it being totally helpful. Stay safe and keep gold.