I like these a lot. I particularly like the use of color, and the attitude in each of these! You are very good. Your ability to draw hands and poses is impressive to me, though I still see some anatomical errors here and there. (Still much better than I can do xD) It's important to learn the basics of drawing bodies realistically and drawing the face on the correct curve before you dive into developing style, color, story, etc. Even stylized drawings rely upon an understanding of anatomy.
I'm no saint on the subject, but that's why I'm telling you this. I never learned how to draw bodies and faces correctly. I just dove right into my own style, and drawing anime like "yay, I can draw anime, who cares about realism." While I got the anime part right, I got the proportions, the bodies, the perspective, the balance all wrong. Years later, I am paying for my mistake--- I'm having to go backwards! I can already draw at an intermediate level, but I'm having to learn the basics of realistic bodies from the beginning like it's my first day in art school. I want to be professional, so it's no longer acceptable for me to not learn how to draw correctly.
*shrugs* You've got a lot of talent, and I'd love to see where you take your talent. : D