I think you've demonstrated considerable growth over this set, and you should be proud of your results. At the beginning, you started out with linework that was admittedly a bit rough and sloppy. It wasn't terrible by any stretch, but it was scratchier, with obvious attempts at correcting mistakes, and many cases where your lines were drawn more slowly and hesitantly (resulting in small wobbles). By the end of your 288 boxes, your lines were confident (for the most part), and your boxes as a result felt much more solid. I'm also glad to see that though you started drawing your boxes quite small, you resolved that issue quite rapidly.

In addition to your line quality, the construction of the boxes themselves has also improved, with the orientation of your lines towards their vanishing points being more and more correct, more frequently, as you went along. It's not to say that sometimes the odd line doesn't go way off its path, but your overall frequency of getting things right definitely went up. It's clear that when you draw a given line, you're thinking a lot about how that line converges towards the same vanishing point as three other lines, and that you're thinking about how those lines relate to one another as explained here. You're not getting distracted by the lines that share a corner, or a plane with the one you're drawing - you know what to focus on, and you're doing it well.

Since you did the subdivided boxes, it would be wrong not to discuss them - but what I'd like to focus on most about them are the main boxes themselves (instead of their subdivisions). Specifically, if you compare these boxes to the ones you drew in pen, you'll notice that your convergences weren't quite as strong and consistent. They weren't too bad, but I do feel like in changing tools, you perhaps spent a little less time figuring out the orientations of your lines as you constructed the boxes.

This is pretty normal, and it's why I push students to use ink for all the main lesson material. It forces you to think a lot more before every mark, it forces us to be more patient and more conscientious. Looking at the subdivisions now - for example, the vertical lines for 281, we can see that these lines end up veering away from the vanishing point they should be pointing towards - when you do this exercise in the future, definitely make sure you're always thinking about how your lines are meant to converge towards the VP set out by the main box. That is all that matters - and of course, there will be mistakes, and those mistakes will accumulate as I explained in the video for this exercise. But as long as you're continually trying to think about how everything converges to its particular vanishing point, your ability to subdivide these forms will get better and better.

So! All in all, great work. I'm very pleased with how your work throughout this challenge went, so I'll go ahead and mark this lesson as complete.