Hi! (and welcome!) Let's get to the critique~

The superimposed lines look quite confident, so nice job there. The same can be said of your ghosted lines, though I'd have liked to see some more of those... This extends to the ghosted planes, too, but there, you forgot to plot start/end points for their center lines (the non-diagonal ones!) Also, be careful that you don't repeat lines. If a line comes out wrong, it's wrong. Instead of correcting it, leave it, and spend some more time ghosting the next one. In general, your ellipses look really smooth, though you'll go around them too much. 2-3 times is the recommendation, ideally 2. Also, in the funnels exercise, be careful that the minor axis cuts your ellipses into 2 equal, symmetrical halves (meaning: they can't be titled!) The plotted perspective exercise looks good, if a little bare... The requirement is 1 page, by the way. Conversely, though it meets the page requirements, the rough perspective exercise is all one composition. The page should've been split into different compositions, that you'd then frame. The exercise itself looks correct, though. (But, again, don't correct incorrect lines!) Nice job on the rotated boxes / organic perspective boxes combo. Though, like in the rotated boxes exercise, you should've included the 'invisible' lines of your organic perspective boxes, too. (That is to say, if a box is overlapping another, don't hide the lines that are being overlapped!) It's important to do this, because it's, in the end, what improves our understanding of 3D space.

Despite some minor hiccups, and the occasionally bare page, this is a solid submission. GL on the box challenge!

While I normally would recommend that you fill out your pages to resemble the example homeworks at the end of each assignment page, the only one that I see an issue with (with that specific problem) is plotted perspective-which you were only supposed to do 1 page, but have about 10-15 boxes between the three frames. You did 2 pages, 1 box per frame, so 6 boxes in total. Someone else may disagree, but I think plotted perspective is an exercise that I could let slide.

More importantly, there are some things to take note of in your other assignments!

Right off the bat your superimposed lines are alright. Some of the early ones experience double fraying (indicating that you weren't taking the time to put your pen down on the one starting point with each of the 8 extra lines), but page 2 solves that problem. Your initial ghosted lines experience some accuracy problems, but based on your ghosted planes and later boxes, you've more or less conquered the most glaring accuracy issues.

Your ellipses are nice, but try to keep it to 2 passes per ellipse. I often see more than 4 passes on many of yours, which results in messy ellipses. Your tables of ellipses seem to show some distortion from the even circular shape, so do your best to focus on an even circle rather than an accurate one that hits all the corners. The ellipses in planes do this well, so I'm mostly mentioning it in case it wasn't something you were aware of!

When it comes to your perspective exercises (the most relevant for the 250 box challenge), keep in mind that if your original dot is off, you are allowed and even encouraged to move it! Make new dots until you have a dot that does the job you need it to do!

Finally, your organic perspective boxes seem to ignore the rules of perspective. The exercise is not some little boxes in front of bigger boxes, as you seem to have drawn, but rather semi-translucent boxes that are all about the same size that get smaller along the squiggly line you've drawn. If a box is big, it's in front of a box that is small. And, you do want to see the entirety of all the boxes, even the ones in the background. You'll definitely want to refer to the example homeworks for this. So, to make sure that you get the point of the exercise, I think I would want you to do at least one more frame of organic perspective, with all of your boxes fully drawn, and the visible lines (a line that is not obscured by another box) emphasized with a single superimposed line.

Overall though good job on completing the lesson and good luck with your 250 box challenge!