Hello, Im Sasmosaw (or Drawmosaw), Im here to take a look at your work!

Lines

Superimposed Lines

I do see a little bit of wobbles, remember to ghost your lines, when you draw them make a quick and confident strike movement (https://drawabox.com/comic/1), I can see a some archs, remember to use your shoulder as a pivot, if you are still getting those archs then try to arch consciously to the opposite direction while drawing

Even though you achieved to get relative accurate lines, congratulations!

Ghosted Lines/Ghosted Planes

This looks very precise, but as I said early I see some wobble(Just a little bit and just in some lines) , Im worried that you may be doing this lines not by muscle memory but whit your conscious brain, avoid this!

prioritize confidence over precision!

Ellipses

Tables of Ellipses

Overall they look pretty god!

some ellipses look kinda misshapen, try to ghost your ellipses until you develop the necessary muscle memory before drawing the ellipse.

Ellipses in Planes

Nothing to say here that haven't I said before

Funnels

Pretty good, ellipses are snug in there and the minor axis is cutting almost every ellipse in half, nice work!

Boxes

Plotted Perspective

Nothing to say here, I can tell that you get the point of this exercise

Rough perspective

As you said, this lines looks more wobbly, remember, the planning phase of making a box is made in the moment you draw your dots, once you are drawing the line you should only think about the lines, so this lines shouldn't be different from the one in the ghosted lines exercise.

Other than that, these looks good, you followed instructions as you were told to do

Don't worry about getting perspective perfect just yet, you will tackle this kinda mater later

Rotated Boxes

Your boxes are okey here, they are rotating, and they are snug!

Organic Perspective

I feel like there are to many parallel lines, especially in the "far away zone"

But I also see several converging lines, so I think that this wasn't in purpose, so I will consider this one as correct

Just keep in mind that every line should be converging to some vanishing point away from the point of view

Overall your work looks pretty good to me!

Don't stress about perspective, at least not yet

You can (and should) move on to the 250 Box challenge now!, remember to use some of this exercise as warmups!