Hi!, and congrats on finishing this challenge! Let’s look through it~

Beginning with the linework, things are looking good. Though this started off quite confident, it had some accuracy issues, in that the hatching lines would stop short of, or overshoot their mark, and the line-weight would miss its guideline by a long shot. Thanks to 250 boxes worth of lines, this has improved by a lot. Your hatching is tight, and consistent, and the line-weight snug, and subtle. One tiny recommendation I have is in regards to the hatching, and that’s to lift your pen off the page at the end of your marks, as per the instructions here.

Conversely, the convergences themselves have, unfortunately, not improved that much throughout the set, but that’s because they started off fairly solid, the only issue with them being the (notoriously annoying!) back lines. In regards to those, I have something that might help. Take a look at this diagram. Specifically, pay attention to the relationship between the angles formed by the intersection of lines in a set (a set that shares a vanishing point, not a plane), over at the vanishing point, and their rate of convergence. You might notice, for example, that the middle lines of the set have a very small angle between them, which becomes negligible by the time they reach the box itself, and those lines can, as a result, guilt-free be thought of as parallel. In comparison, the outer lines of the box have a large angle between them, and need to converge much more dramatically to be able to intersect at that same point. This becomes a useful tool in your toolset, so be sure to try to see these relationships in your own boxes, the next time you find yourself constructing some. For now, however, you’re more than welcome to move on to lesson 2. Good luck!