Hi there, nice work! I think starting on quick gestures can be quite hard. I still struggle with it! Often you see artists quick sketches that look amazing but they have cleverly hid a lot of other fundamental drawing skills. I would work on thinking of the figure as cylinders and boxes for a bit. Working out which orientation in space those arms and leg cylinders are going and then thinking about gesture. If your figure form is solid you will always start from a good base. But yeah these things take time to learn, like literally years, so don’t beat yourself up. If ever your struggling try learning something else that you think would help you tackle that problem.

Nice work! I don’t think you are too far off. I always struggle with the twist motion and one thing that helped me was thinking about the centre line of both the ribs and hips. Think about the orientation each ‘box’ is facing in space. For example I think in your first image lower down example the twist is right you have just drawn the centre line in the wrong place. Hope this helps!