Untitled

Hey there! First off, you have some good readability in your sketches! Some of the poses have good line of action. It shows that you're looking at the figure's center, and watching how their center translates to the rest of the post. The next step is to give your figures some volume! Instead of outlining the body shape, to to draw cylinder like shapes, so that your pen wraps around the body! Look for body landmarks, like the rib cage and how the muscles bend. As you sketch, wrapping around the body will help you define your shapes!

大致形体展现出来了，要注意好结构