Hi there, I'll be handling your box challenge critique.

Congratulations on completing not only the box challenge but attempting the additional exercises as well. This challenge is by no means easy and it requires a lot of willpower to get through so be proud of what you've accomplished so far.

Starting off your line work is definitely looking tidier, by no means was it bad to begin with but looking at your hatching lines it's clear that you're hitting your intended stopping point more frequently with less wobbling. It's good to see you're practicing implementing line weight as well, it's an incredibly useful tool that requires a lot of mileage to be fully comfortable with.

You're experimenting with orientations and proportions which is great, there is some room for you to experiment with rates of foreshortening however, you mostly kept your vanishing point the same distance away throughout your submission. Experimentation is key to deepening our understanding, without doing so we risk ending up just being able to draw that one particular thing/style of box well.

When it comes to your convergences you are looking more consistent but there are moments where your lines converge in pairs or are kept as parallel as possible, both of which are mistakes. Take a look at this example here, it shows how each line in a set relates to one another. The inner pair will be fairly similar unless the box is quite long while the outer pair will vary quite a bit depending on the position of the vanishing point. The important things to remember are that due to perspective we don't want our lines to be perfectly parallel, we should never diverge our lines from the vanishing point and they should always converge consistently as a set and not just in pairs.

Overall this was a solid submission, while you have some room to experiment more and things to work on I have no doubt you'll continue to improve with more mileage.

I'll be marking your submission as complete and moving you on to the next lesson, keep practicing previous exercises as warm ups and good luck!