Hey there Triveil, I'll be handling your 250 box challenge critique.

First of all congratulations on completing the challenge, it's as much a test of willpower as anything else so getting through it is a huge achievement.

In this challenge you tend to get 2 different types of people, you either get someone who went in with a very weak understanding of perspective who may show a lot of growth or you get someone who already had some decent looking boxes and because they see the entire process they feel like they didn't grow much because it's much more subtle. You're definitely in the second camp, you've definitely grown and improved it just may not feel like it because they're ultimately just boxes. The fact you're more comfortable constructing 3D shapes in your free time drawing is a good sign that you've internalized a lot of the concepts you have to deal with here.

So as someone with an outside point of view, I can confidently say that you've grown. Your convergences are much more consistent, you get diverging lines less frequently as well. While errors may still occur remember we aren't robots and we will make them, improving means you just make them less often and they're less extreme.(usually)

I'm happy to see you experimented with different foreshortening and shapes. Your line work has improved, you can notice it especially in your hatching where your last pages look much cleaner than the first few. Overall there's an improvement in confidence and understanding. You may still have room to improve with your line weight, but the fact you experimented with and improved at applying it is great.

One thing that may help is this example. People tend to discover this on their own, but having it clearly shown to them can be useful in properly understanding it. It shows how each line in a set reacts to their respective vanishing point, the inner pair will be nearly identical in almost any scenario with the outer pair having more variety. Remember as the vanishing point moves further from the box the lines will become closer to parallel.

I did ask Uncomfortable about your Aphantasia question as well, here's what he had to say:

"Oh. It has nothing to do with visualizing of anything

what we're doing here, by making mistakes, identifying where we made mistakes, and then working to improve on those specific issues, is that we're training our brain to understand those 3D spatial relationships. The brain learns to accomplish this in whatever means it has.

Long story short, don't get caught up in the whole visualization thing - glancing at the work, I can see that they're improving on judging the convergences. Just keep it up."

So don't stress too much, we can all see and make note of your improvement.

I'll be marking your submission as complete and moving you on to Lesson 2.

Great work, keep it up!