This is a good study, and I like the sweep of the figure. I thing the gesture is really strongwomen and the light is working in this picture well. If I had one critique it would be that the model's face has a little more fat than you show in your drawing. This ages her a bit. But this is a great picture!

Hello! nice study. Here is my feedback, hope it helps: - Proportions: Since Stan teaches us to start with the torso, I would say that the legs are short and the head small, but only a little. The drawing looks pretty natural, but I can see the difference in comparison to the reference. - Shading: The shadow edges, known as the terminators and the cast shadow limits, according to theory, should be depicted with a soft edge for the former, and a firm edge for the latter. If you study the work of Lane Brown, he does that notoriously.  Did you try to treat the shadow side more graphically? I mean, there is something often called "Value compression" that is about making choices to what side we prioritize. Generally, for this kind of drawing, the light side is prioritized. - Light condition: it is a nice reference, side light is a good lighting setup, I believe. By the way, very good gesture!

It looks very good, especially the line work. Proportionally, I think the left leg needs to be slightly extended. The left knee should almost match up with the wrist on the right knee. And the shading on the underside of her jaw line is a triangle shape. It improves the angle of her face and makes the neck lines more natural.

Hello Persona, it seems to me that you have done a good job. You used different shades of shadows and distinguished them effectively. While keeping everything very simple and clean, almost graphic, you have effectively portrayed the three-dimensionality of the figures. Perhaps you could have worked a little more on the neck lights but it is still a job well done.

Good start! I suggest you add some subtle transitions in the halftone, to round the form, and to plain down tonal difference in the shadow. Dorian Iten explains this in https://www.dorian-iten.com/shading-mistakes/