Hello I’ll be handling the critique for your 250 box challenge

Linework

-Starting by your linework, you have drawn your lines with confidence, and you are using the ghosting method to good effect as your lines maintain a good deal of accuracy too. The first thing I want to call out has to do with the fact that in some boxes you have repeated your lines, keep in mind that if you make a mistake you should not try to correct it by drawing the line again, instead leave it like that, and also keep in mind that these mistakes do not take away from the things you will learn by completing the challenge all the way to the end.

-This leads me to another important point which is lineweight, I can see that you have not applied lineweight to most of your boxes, it is not a necessary requirement but it is important that you get used to applying it, as it becomes an important in future lessons. The most important thing to keep in mind when using lineweight is that we should be very subtle with it, only one additional superimposed line is more than enough, here is a diagram that shows the correct way to add lineweight, and you can also see it applied to a box here.

-In most of your boxes the hatching looks somewhat rushed, remember that each line is no less important for being part of a larger group, so give each individual line as much time and attention as possible so that you can draw it to the best of your ability

Box Construction

-You have used the line extension method correctly for all of your boxes and your sets of lines have a tendency to converge which is correct, just keep an eye out for lines converging in pair as shown here.

One thing that can help with this issue is to start thinking between the relationship between each pair of lines and the angles they form respective to their vanishing points, this relationship is exemplified in this diagram, you can notice that the inner pair of lines is always quite similar and the outer pair can vary a lot depending on the location of the vanishing point, the further away you place it and the outer pair of lines will start to run close to parallel.

-I also want you to keep experimenting with the rates of foreshortening, the orientation and sizes of your boxes, for most of the challenge you stuck to dramatic rates of foreshortening, so instead try more shallow rates of foreshortening with the vanishing point outside the page, in these cases the lines will start to run close to parallel, but keep in mind that they always have to converge, due to perspective our sets of lines will never be fully parallel nor diverge from the vanishing point.

-If you have trouble coming up with new orientations for your boxes you can take a look at this image and use it as reference, it is important that you keep experimenting with all sorts of sizes and orientations. Experimenting is a good habit as it helps us to develop a more grounded understanding, so I hope you keep nurturing this habit in the future.

-Lastly, I noticed a tendency to draw tiny boxes, so remember to give each box as much room as you can, this will make it easier to engage your whole arm when drawing and in turn will improve your confidence.

Okayy, before moving on I will leave you a few more boxes. I want you to focus on not repeating your lines when you make a mistake. Best of luck!!