Well done! Most of your exercises were pretty confident I would say. With a few cases where some ellipses sometimes looks wobbly. With the perspective you are pretty much on the mark as well with the farthest left row and top right box in the rotated boxes exercises having some inconsistencies in their perspective but I think you've done a good job as a whole.

I don't really see an issue in your work other than the issue of confident and such but as long as you keep being confident in your lines in mind, I'm sure you'll be fine.

I've went ahead and marked this lesson as complete for you. Remember to use these exercises as warmups from now on in order to further refine your skills.