Hi, I'm ZNorb and I will do your lesson 1 critique:

Lines:

-I see you are not doing chicken scratching or repeated lines on your line exercises, that's great, and I see that you followed the steps of the exercises properly

-Something I found is that in the ghosted lines and the planes exercise, some of your lines are arching and some of them start getting wobbly. Remember that you should prioritize confidence over accuracy (https://drawabox.com/lesson/1/3/smooth)

-In the superimposed lines some of the lines are fraying in both sides (https://d15v304a6xpq4b.cloudfront.net/lesson_images/1585f266.jpg)

Ellipses:

-When looking at your pages, I see that your ellipses are more confident than your lines, you ghosted before doing it and that's great too.

-In the table of ellipses exercise there are some ellipses that cross the edge of the lines, and some ellipses overlapping other ellipses. In the ellipses in planes some of the ellipses don't touch the 4 points on the planes

Boxes:

-In your boxes exercise I see you followed the steps properly too. Some of the boxes have repeated lines like on your rough perspective and organic perspective exercises. Other thing I see is that in your plotted perspective exercise one of the boxes looks like a bunch of boxes combined to make a complex form. The point of the exercise is to make an introduction to perspective by making boxes in 2 point perspective, don't make it more complex because that would be confusing (https://drawabox.com/lesson/1/plottedperspective).

-In your rough perspective exercise some of the height lines aren't perpendicular to the horizon line

It's completely normal to have mistakes because we are learning, and with more practice mistakes like these will become less and less relevant. I will mark this lesson as complete.

Keep practicing the exercises as a warmup and good luck with the 250 box challenge.