6:07 AM, Wednesday August 12th 2020
Hey, congrats on this. I recently finished this challenge too and it took me weeks.
Your line weights improved over time which is great.
You did self checking like measuring vanish point distance around box 50 which is smart.
Definitely improved a lot over the boxes, including confidence in lines.
Only thing I will mention is that sometimes one vanishing point off. Sometimes the closer edge is not parallel enough, it reaches the vanishing point before the farther edge. This causes the nonparallel lines. Something that helped me was starting thinking of connecting all the edges to a vanishing point and that was the goal, I started with 1 VP, then 2, then 3. Made dots all over my page and that improved my accuracy.
Otherwise congrats, this is by far not an easy goal and takes mad commitment.