Hello Joaz! Congrats on finishing 250 Box Challenge, this is your first major test of strength, and you finally overcame it, good job!. I'm Strauss and would be pleased to critique your work, i hope they can help you one way or another on your art journey. Now let us hop on to the critique:

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Okay so, at the very beginning i want to point out a few stuff that you’ve managed to improve by yourself overtime (which is great!)

• Confident lines: as you may already know from Lesson 1, line confidence is our motto here. Confidence > Accuracy. You did well at keeping lines consistently confident throughout the whole Challenge.

• Lines converge instead of diverge: for some of your early boxes, the lines (box edge) is clearly diverge, for example, this one (https://imgur.com/a/pOecy8B)

Do keep in mind that, theoretically, since all the boxes we draw here is in 3-points perspective, the lines will always converge to a vanishing point. not diverge OR parallel to each other. We may encounter and find ourselves in some situation where the lines converge very lightly, leading to the illusion that they are parallel, but no matter what they have to converge somewhere, even if it’s very undeniably hard to notice the convergence itself. Take a look at this diagram https://imgur.com/mWLlnYl and https://imgur.com/a/zcHXos5

• Extending lines in the wrong direction: When applying the line extension method, lines have to be extended away from the viewer (aka extend the lines away from the center dot of the Y, as shown here: https://imgur.com/iNpIubA). I can see that you struggled with it a bit, especially with your earlier boxes (you pointed it out yourself), but by the end you’ve managed to counter this issue, so good job.

• Box variety/different orientation: I’m very pleased to know that you use the Y generator tool, which helps you immensely with making different orientations of boxes, especially with your later pages. Avoid drawing the same box over and over and be more creative with the Y angles and lengths. The combination of these two can create a limitless amount of boxes.

• Hatching lines: you also use hatching lines as a mean to clarify which face of the boxes are the ones that face the viewer, great!

Next, I want to talk about a few stuff you can take note and improve on for future attempts:

• Adding lineweight to the silhouette of your boxes using the super-imposed method is highly recommended. One single super-imposed line is enough, no more, no less. Less is more. As always, confidence > accuracy. Don’t forget to employ the Ghosting method for adding lineweight (or any kind of line for that matter) and rotate the canvas when needed.

• Shallow and dramatic foreshortening: I’m glad to see that your boxes, especially later on, is clearly converge, though if the convergence rate is too extreme it will eventually leads to what we call “dramatic foreshortening”. Try to draw boxes with shallower foreshortening for variation.

• Inner corner: before elaborating any further, it won’t hurt to remind you again, confidence > accuracy. Now, about the inner corner, this is actually a pretty common issue people usually bump into! It's natural to have the inner corners to look off, since the inner corner is usually the last mark you put on the page to finish the whole box, the mistakes you made in previous steps will accumulate overtime and result in this monstrosity that looks hellishly wrong.

A way to improve on this is to start thinking about the relationships between lines as in a whole set (4), instead of in pairs (2). When drawing a line of a box, you should look at a bigger picture, as in the other 3 lines of a set (which consist of 4 lines total), then comparing their angles and make a guesswork based on them. This diagram here explain this in a more cohesive way: https://i.imgur.com/8PqQLE0.png

This can be pretty hard to comprehend at first, so by any chance that you don't understand it, do not fret, keep checking it from time to time while practicing regularly, and it will click eventually.

Overall, you did great! It’s very clear to me that you are able to grasp the crucial points of what this challenge was all about and improved a lot on it, therefore you can now head to Lesson 2. Using (any) Lesson 1 homework plus box drawing as 15-30 mins warm-ups before diving in the assignment is recommended. Good luck Joaz.