Hello and congrats on completing the challenge. I'll be looking at your submission today. Starting with your line quality and added line weight this looks like it improved quite a bit as you worked through these. Just a general note regarding adding line weight. Try and treat it the same as you would drawing any other line during these exercises. Ghost it multiple times and then draw confidently from the shoulder. A lot of students tend to fall back into drawing from their wrist while adding line weight and it tends to give a chicken scratchy look which was more evident in your first few pages but there was definitely noticeable improvement in this area. Your hatching was also having similar issues with quite a bit of wobble and arcing earlier on that seems to have gotten much better as well. So great job on these fronts.

You did a great job extending the lines back on your boxes correctly to check your work. I don't think I noticed any mistakes regarding this and it lets me know the student understands how vanishing points work in regards to their box constructions. You still had a few issues with box lines diverging instead of converging on a few box especially early on like #1 and #51. I noticed it on #213 as well but this issue seems to have mostly gone away. Still have a look at this graphic as this is an important thing to think about when constructing your boxes. https://i.imgur.com/8PqQLE0.png Your lines are ALWAYS going to converge to a vanishing point and never diverge. You did a good mix of boxes with more extreme foreshortening and less extreme which is good to see. One thing you want to try to avoid is a box like #194 which is constructed entirely with parallel lines. Boxes in three point perspective will almost always have very slight convergences at the least because if they were perfectly parallel that would mean the box is getting bigger as it moves back in space. Overall this was a great submission though you showed a lot of growth working through this exercise. Your convergences are still having issues here and there but your boxes are at a point where they are consistently solid and your improvements with them are going to come much more gradually. Maybe try challenging yourself with rotating boxes and trying to keep the proportions intact.

I'm going to mark this as complete and good luck with lesson 2. Keep up the good work!