5:20 PM, Sunday June 26th 2022
Hello!
I will take care of correcting your 250 box challenge.
Lines:
Your lines look drawn correctly and patiently.
Both line weight and line hatching look well placed, as well.
No errors that jump out at a glance.
Box construction:
The process you go through to build your boxes looks adequate. You place the points, plan your lines, etc.
In some cases you extended your lines in the wrong direction (like in box 3), but you corrected it in the following boxes so I won't highlight too much there.
I see you practiced boxes with deep and shallow foreshortening.
Both are useful, although in future boxes you will want to stick more to shallow foreshortening.
Regarding the convergence of the lines, sometimes they converge in pairs (like in box 249 and 250). As if there were two vanishing points for the same set of lines.
It can be corrected by thinking of the relationship of every line of a set to its single vanishing point.
As shown here: https://imgur.com/8PqQLE0
Conclusion:
The process and effort you spent in drawing all the boxes is very good.
The only notable error is the convergence in pairs of your boxes.
I will leave you a minimum of homework to try to correct it.
Next Steps:
Draw 15 more boxes.
Try to avoid the lines turning into pairs.