Howdy, TA qzhans here!

First, superimposed lines. Overall, there's some good confidence here. Your first page had some crazy fraying at both ends, but I'm happy to see that you slowed down on the second page and almost completely eliminated that problem.

Moving onto ghosted lines, that confidence continues. There's a little bit of arcing, but i don't see any wobble, which tells me that you executed these in nice, clean strokes. I do wish you would've done some longer ones however, just as a challenge.

Your ghosted planes look nice. I can see the improvement in the accuracy of your strokes, but without sacrificing any confidence. I also like how you aren’t afraid of your mistakes; I don’t see any redrawing of lines that missed the mark.

Moving onto your ellipse tables, I like that you're keeping your ellipses tightly packed within the bounds that you've set, and that you're drawing through an appropiate amount of times on each one. There are a few that get a little pointy or geometric from trying to fit in the boxes, and there's expected room for improvement in getting them to be tight and tidy, but overall nice work.

Your ellipses in planes show some good confidence, but you are definitely running into the problem here of deformation of your ellipses to hit those bisection points on the edges of the planes. Opt for a smooth ellipse over fitting perfectly in the bounds.

Next, your funnels generally do a good job of aligning to the minor axis that you've set and I have no complaints.

No problems with plotted perspective either!

For your rough perspective, I’m pleased to see that you are applying the error checking method correctly, extending your lines parallelly back to the horizon line instead of directly to the vanishing point. I do see a few issues with keeping the verticals perpendicular to the horizon line and the horizontals parallel to it, so watch out for that. Additionally, I do see a little bit of wobble creeping into your linework, so watch out for that. While there are times where you need to sacrifice a little confidence for accuracy, try not to during drawabox exercises.

And now, the one you’ve been waiting for: rotated boxes. Before anything, I wanted to congratulate you on its completion; it's not something you're supposed to be ready for. First thing I notice is that you've kept the gaps between your boxes relatively consistent, which is a great way to eliminate needless guesswork. However, there is still the problem of not enough rotation with the boxes. You did this best on the right boxes on the middle column, but even there you can still push it. The rest are almost not rotating at all. Also keep in mind that especially for those outermost boxes, the outward faces are turning away from us, and so should be drastically smaller. Take a look at Uncomfortable's example again and you'll see what I mean. Finally, I like your use of lineweight to pop out important faces and seperate the boxes, but there is a tendency to get a little hairy with it. Even when reinforcing, remember to use clean, confident strokes.

Finally, onto organic perspective. In general, your boxes do a good job of shrinking and growing as they move through space. I'm pleased to see a little bit of overlapping here and there as well (although I do think you could've done a bit more). There's work to be done in getting those parallel lines to converge to their shared vanishing point, but you can iron that out with the box challenge.

Overall, this is a solid submission, and I have no qualms about waiving you onto the 250 box challenge!