In your lines, they are arcing and wobbling quite subtly, and your elipses look quite unconfident and lack roundness , your elipses in planes look less like elipses and more like diamonds, for your boxes, the width lines sometimes point to the horizon rather than being parallel to it. For your rotated boxes,some of the corner boxes are not tilted like corner boxes.

I recommend for the lines and eclipses is that when you ghost them, do it slowly, make sure your brain is warmed up to make the mark, and when you think you are ready, you execute it swiftly and dont think that much about your execution, even if the execution is not that accurate, dont worry, its fine as long as the line or elipse is confident. The goal of this part of the course is to improve your confidence in making marks, as long as you practice on confidence, accuracy and speed will come.

For boxes though, make the points that make the box straight.

Ill ask you to do revisions of the lines and elipses exercises if thats fine with you