Lines look pretty good, nice confidence! Only issue is that you aren't drawing starting and ending dots on the planes exercise before drawing a line in every line. It should be done in all of them, so don't forget it.

Ellipses look pretty good, they start a bit wobbly but I can see how your confidence improves as you go through the exercises. They are still a bit wobbly, so don't forget that confidence is more important than accuracy, focus on trying to make them as confident as you can, even if their accuracy gets worse.

Rough perspective looks mostly good, but you are repeating a lot of lines, don't forget not to repeat any line, no matter how wrong it was.

Same goes for rotated boxes, that has a few issues as well. You haven't drawn all the boxes you should have (check the homework example), and you are repeating a lot of lines. You have some boxes that don't rotate as well, so try to be careful as well. It's expected for this exercise to be too hard for you so don't worry about it. Though not repeating lines is very important.

(Just saw you did another attempt at this exercise. Don't repeat exercises unless you're told in your critiques, no matter how bad the result is).

And same goes for organic perspective, don't forget not to repeat lines. On your next attempts to this exercise, try to do more overlaps between boxes as well.