1:53 PM, Tuesday February 14th 2023
Hello and congrats on finishing the 250 box challenge! I know how difficult the challenge can be so it's great that you had the perseverance to finish.
Onto the critique:
Hatching: It's not a requirement to hatch one face of your boxes, but it is recommended. Try to hatch more in the future.
Convergences: A lot of your boxes have very steep convergences as opposed to shallow ones. It's good that your practicing different box orientations but only around 1/3 of your convergences should be that steep. Ideally most vanishing points should lie far away from the page. For what it's worth, a lot of your boxes, especially near the end , have near perfect convergences.
Lineweight: Lineweight should only be applied to the outline of the box, not to the initial Y shape.
That's all for now, I recommend practicing some more before moving on, keeping what I said in mind.
Next Steps:
Do 4 more pages of boxes all with far off vanishing points/shallow convergences. Try to incorporate hatching if you can.