250 boxes! I'm glad you did it :) good job. Giving it a quick peek I can already see I'm gonna mark this as complete, but not before I give you some good feedback going forward.

I'll go through the boxes 50 by 50, see if we can see some progress as well!

Boxes 1-50

The first 25 or 30 boxes are very messy, but the quality quickly picks up after that. You have the right idea about how the lines should converge, and you're already hatching your boxes properly which is great. In the first few boxes your hand is very shaky but by box 50 the lines have become.. relatively straight.

They're not as straight as you want them yet though. When placing the marks, be sure to spend enough time on ghosting them, from back in Lesson 1. Ideally, you want to spend a long time "practicing" placing a line, and then the line itself you place hard and fast- this will avoid wobbles and bobbles.

I'm also noticing a lot of lines converging "in pairs". For instance, box 26, 32, 35, 37, 39. It is important that all four lines converge to the same point. However, in box 28 you did that absolutely perfectly!!

Boxes 51-100

A lot less wobbling already, but still visible. For instance in box 67, 68 or 70. I'm also noticing you're not adding line weight to the outside of the box. Even though it's optional, it is absolutely great practice you've been skipping out on, which is a pity. Be sure to check how to do that in the Box Challenge lesson description.

I'm also noticing that your hatching in the boxes is sloppy. It deserves the same attention and straight-ness as all the other lines.

Having said that, I see a lot of creativity in your box shapes and sizes, which is fantastic! And honestly, the boxes look clean, and most of the time the converging lines are done proper and well.

Boxes 101-150

Be careful that you're not repeating lines when you make mistakes, that's really important! Quite a few boxes here, 101, 102, 103, 104, 105 etc. you have doubled up on the lines. It could be that you were trying line-weight here, in which case good job! Be sure to re-check the lesson plan though, line weight should only be added on the outside lines, never on the inside. If you did it because the lines were wrong, just let them be :) that's why we draw 250 boxes, plenty time to fix it in future boxes, don't redraw over existing ones.

There's also a lot of boxes still, 108, 113, 114, where the lines are converging in pairs. It's a bit of a mix, because you also have a lot of boxes where you avoid that and draw them converging properly!

Interestingly, the hatches in the boxes have become a lot straighter. Not all of them, but you fixed that issue yourself properly!

Boxes 151-200

The boxes 171-175 look gorgeous! They're the only page drawn with a different colour, but they are so clear. Much nicer to review than the other pages.

Throughout the entire set of boxes you've been repeating the same mistake, and that is converging the lines in pairs. All the boxes on 171-175 have that same issue, and a large amount of the previous boxes as well. I think this is your main pitfall. All the other feedback is relatively minor.

Still, good job on experimenting with boxes like 197. They're really hard to draw, but you're trying, and that is wonderful.

Boxes 201-250

There are a few oddly weird boxes in here, haven't seen that in the earlier sets. 232, 233, 239 are straight up sloppy. Having said that, nothing to add that hasn't been said in the previous sections already.

Overall

Great job! Your boxes are good enough to move on to the next lesson, I won't even ask you to make some extra boxes.

However, I do want to stress a couple of points.

The biggest one is converging in pairs. All the way up to boxes 248, 249, 250 you have this issue. All four lines must converge to exactly the same point, and this is clearly not the case. (Interestingly enough, box 247 you did it perfectly fine!)

Please pay a lot of attention to that, it's the big takeaway here.

Do not redraw your marks. Make your mistakes and move on. It doesn't matter that the box is messed up, its more important to make the next box well than to fix this one.

Also make more confident marks. The wobble like in box 249 shouldn't happen. Ghost properly, practice, and then when you place down your pen, mark smooth and fast.

That said, again, well done. Lesson 2 it is, but be sure to keep the above in mind when doing some boxes during your warmup sessions :)