Hi, TA qzhans here!

Before we begin, I just want to congratulate you on giving those 250 boxes a good ol’ pen and ink smackdown. It is a MASSIVE undertaking and you’ve joined the prestiged club of its completers.

Overall, I'm liking the confidence and accuracy your display in your linework. I'm not seeing any re-drawn lines or wobbly ones.

One issue I'd like to bring up is how the length of your error lines gradually began to shorten out throughout the set, to the point where it was hard to tell if there was divergence or not. Make sure to extend it out 3-4 times the original line length, and don't be afraid to crash into other boxes you've already drawn.

Additionally, I do wish you would've experimented with line weight at the silhouette to help reinforce depth.

The main issue I'd like to bring up is your internalized understanding of convergence. If I look at your first page, you tend to have an issue where the lines in front don't converge. I'm not sure if this is because you draw the back lines first, but generally the thing that helps sell the illusion the most is if the lines facing us converge fairly nicely. A lot of the times, those front lines are diverging, which we can instantly spot. When you go to draw a line, think only about the lines that are supposed to be parallel to it (share a vanishing point). Lines closer to an existing line will converge slower, while the opposite is true for lines further away. The reason I bring this up is that the issue still persists to the last page, especially on the top right and bottom left boxes. The page before it (246) is fine, so you use that as an example.

In general, your linework is definitely at a level where I feel safe waving you onto Lesson 2. However, I think you might just need a few more boxes to really hit home the idea of convergence, as an internalizing understanding of it will really help your drawings look better almost unconsciously. Thus, I'd like to assign you 10 more boxes, this time focusing on making sure the 9 lines facing us appear to converge.