I think you're doing good. Your figures have necks, so that's already better than some of my gestures Also the proportions generally looks good and I think you've captured the poses well.
Honestly, the only thing I could maybe see you trying to improve is drawing with less lines, if that makes sense. By that I mean not going over the same line multiple times and also trying to draw longer lines in a single stroke instead of doing multiple smaller ones. But that will probably come naturally as you do more
Beyond that though, nice job! I really like them.