Your figures are excellent in proportions and accuracy! However, I would say that some line work could be improved, some figures look a bit stiff but I think you can improve by trying to hold your pencil differently since I think you might be holding your pencil just like how you write.
https://www.lovelifedrawing.com/choosing-a-pencil-for-life-drawing/ @the 5:20 mark
also try to draw using a single stroke in some of the gestures, instead of zigzagging some lines, I notice that my figures look a lot dynamic when I do that, and if you make a mistake just go over it with the same single stroke. Hope this helps, keep up the excellent work!