I am no professional, so let that be known as I give you critique. It looks like you have been doing a good job of preserving the sense of motion in the poses! The thing that stands out the most to me is that there seems to be some redundant lines, resulting in that "chicken scratch" effect. It's not a huge problem, but you might hone in your line work by trying to make every one of them count.

Hi @crobe, these are really nice! Strong gesture and good line quality! - I would recommend getting into the habit of drawing through the forms (Top 5 Drawing Mistakes). Apart from yielding a more cohesive drawing it also makes you aware of how there is a flow passing through and between, connecting, the body parts. - Watch out for symmetrical contours in the limbs. Symmetrical contours can kill the flow. You could think of the gesture as a stream of water passing through the body, which the contours should push from side to side to keep it flowing. A curve on one side is followed by a curve on the other side, creating an asymmetrical pattern. You might appreciate watching this video How to Draw Dynamic Shapes – FORCE Series Part 3 (parts 1 & 2 are great too). - I attached an image with some practice tips that helped me a lot when I took the course. Hopefully they can be of some help to you too :) Cheers!

I'm just getting started myself so take my criticism with a grain of salt. I think your drawings look good and you're on the right track! That second photo especially does a great job of conveying motion. In the last photo you uploaded, it looks like your proportions are not balanced right which is taking away from the image. The body on the left has such a big torso and head, and the legs look much too small in comparison. I can tell there's some foreshortening happening in the image, so naturally, it does have to look "smaller", but I think you can foreshorten it without losing the balance. (But nice job on the foreshortening of that front leg!) How can you avoid losing that balance? Since I'm a beginner, I can only guess that this balance of the image happens from further observations of the size relationships between various body parts, and from practice. Maybe making the upper body a touch smaller in comparison to the legs, or maybe making the head smaller. Look at the size of the head compared to the shin area in that image I was talking about, and compare how they relate to one another. Again, I think all your uploads look awesome for someone that is just starting! Keep going! :)