So I did a side by side and a bit of draw over to help point out a few issues.
The very first thing I noticed was the head, there's no perspective applied to it. Proportionally it's fine but we should be seeing it from below. Almost to the point where the jawline is a flat line or even pointing up.
Next was the shoulder/hip ratio. If this figure wasn't in a curved perspective this would be fine, the hips are as wide as the shoulders. But because this figure is in perspective the hips should be noticeably wider. Exaggerating those proportions is something that can really sell the perspective.
A minor thing was the breasts. At the angle we're seeing them and their size we should see more of the underside where they rest against the rib cage. The nipples also need to be a bit higher.
The legs look good but could be tapered more as they move away from horizon line.
Finally, on the arms the muscles of the triceps are located right underneath the delts. I drew where they should be on your figure (the size is exaggerated a bit) .
Okay, that was a lot of stuff. 4 point perspective is really complicated and drawing the figure in that perspective even more so, it's something that I still have trouble with. Your other assignments look good and you have a good grasp of perspective, so I think that you'll get this down with some practice.
If you have any questions, need some clarification on something or want me to look at another assignment don't hesitate to ask
