Hiya! Let’s see...

Starting off, your lines look quite good. I do wish you’d spent a little more time lining up your pen to the correct starting point on the superimposed ones, and a little more time ghosting on the ghosted ones, but the most important thing is for them to be confident, which they are.

The ellipse section looks great- I don’t have much to critique there.

Moving on to the box section, it looks like you used a ruler for front faces of the boxes in the rough perspective exercise. This is, of course, incorrect. It’s a common mistake though, so no worries. By the way, I’ll remind you that correcting an incorrect line is a bad habit, that’s discouraged. It’s far wiser to leave it be, usually. Nice attempt at the rotated boxes exercise, though the boxes don’t quite rotate as much as they should. As for the organic perspective exercise, see if you can take another look at the notes on foreshortening, and, the next time you attempt this exercise, remember that a box overlapping another should not hide its lines.

Despite some minor issues, this is a solid submission, so I’ll mark it as complete. Well done.