You superimposed lines are overall good, but they are slightly wobbly. Also, some of them are fraying at the start. Place your pen carefully before starting the line. You ghosted lines and planes are looking very good, although it looks like (at least in a few cases) you did not place the dots before drawing the inner lines on the planes. Be sure to always plot all your lines with dots, as this gives you a goal to draw them to. If you don't place dots how can you know if your lines are accurate? This will help you check your improvement.

You did very well on the ellipses exercise. It's evident that you've drawn them with confidence, as they end up being very smooth, with virtually no wobbling.

On your rough perspective exercise (although you get what was asked of you), there are some lines that could be better aligned with the horizon. Remember that the horizontal lines of your boxes should be parallel to the horizon, while the vertical ones should be perpendicular to it. On some cases you draw over the same lines more than once, probably to correct a misplaced one. Avoid doing this, as in the end the misplaced line will still be there. Just keep your mistake in mind and do better on the next box.

Good job on the rotated boxes keeping everything packed together. On some cases you could have pushed the rotation further, but overall you got a good result out of it.

Your organic perspective is also good, although I feel you could have drawn a larger number of boxes, to help you better sell the illusion of depth. Nonetheless, you did well on the boxes you've drawn, taking the risk to overlap some of them. The perspective is mostly accepted, except for a few onces that are slightly distorted, but you'll have plenty of opportunities to practice perspective on the boxes challenge.

Very good submission and good luck for the further lessons.