Hi Birdhair! I'll look at your work to see if I have some critique to give you.

To start off, I'd like to ask you something. Have you been constantly using your shoulder to draw? I see a lot of wobbling all around your submission. A wobbly lines are always a mistake, no matter how accurate, and a confident line will be correct. With practice, you'll improve your accuracy. Go over to this page again: https://drawabox.com/lesson/1/2

This mistake consitent accross all exercices. That said, I'll look at your exercices and give you feedback anyways.

Ellipses:

I can hardly see the table! Is it a scanning issue? If so, you can take picture next times.

Ellipses are also very wobbly. You can ghost them too, and you should. Funnel look pretty good, you did great in cutting the ellipses in half.

Boxes

Rough perspective: You made one mistake: some of your boxes aren't aligned with the horizon line. The width lines should be parallel to the horizon line and the height lines perpendicular to that.

Rotating boxes: I see little rotation on the boxes near the far end, as they mostly seem to be converging to the same vanishing point. Here's an example to illustrate what I mean. It is a common mistake so don't feel bad, you'll get it next time!

Organic perspective: It's normal for the perspective to be a little off, because you'll work on that in the 250 boxes challenge. You did good.

Overall, you did a decent job but your main weakness is your markmaking. I heavily recommend getting familiar with ghosting lines before going forward.