Congratulation on completing the 250 Box Challenge!

You did a pretty good job on the challenge overall. I can see that in the beginning your lines were more hesitant and wobbly, but as you progressed through the challenge they became straighter and more confident looking. You also do a better job of getting your sets of parallel lines to converge more consistently towards their shared vanishing points!

There are a few things about your boxes that stand out to me. The first is your extra line weight. While your boxes are fairly well constructed with straight, confident looking lines, you show a lot of hesitation still with your added line weight. When you go to add weight to a line it is important that you treat the added weight the same way you would a brand new line. That means taking your time to plan and ghost through your mark so that when you go to execute it the mark blends seamlessly with your previous mark. This will allow you to build and create more subtle and clean looking weight to your lines.

In the future, you should try varying the foreshortening of your boxes. Many of your boxes appear to consistently lean more towards shallow foreshortening with very little dramatic foreshortening in your work. You can read more about this here. Try to also lean more towards drawing your boxes larger. It's good to have a variety of sizes in your practice, like what I see in your homework. But in general you will get more out of your practice if you draw larger than smaller. Drawing bigger helps engage your brain's spatial reasoning skills, whereas drawing smaller impedes them.

Following that I want to also point out your hatching and some of the boxes that you scribbled out along the way. While working through Drawabox you should be employing the ghosting method for every mark you make. This includes the hatching that we sometimes use for our boxes. Each mark you make needs to be planned out and thought through before you put pen to paper. This helps a lot with reducing hesitation and making your lines more confident looking. You should also never cross out or try to cover up any mistakes that you will make. Just remember that the confidence of the stroke is far and away your top priority. Accuracy is something that you will improve on as you continue working through Drawabox and practice ghosting.

Finally while your convergences do improve overall I think this diagram will help you further develop that skill as you continue through Drawabox. So, when you are looking at your sets of lines you want to be focusing only on the lines that share a vanishing point. This does not include lines that share a corner or a plane, only lines that converge towards the same vanishing point. Now when you think of those lines, including those that have not been drawn, you can think about the angles from which they leave the vanishing point. Usually the middle lines have a small angle between them, and this angle will become negligible by the time they reach the box. This can serve as a useful hint.

Congrats again and good luck with lesson 2!