Hiya, Tora! So, first things first, I'd like to direct you to this section of Lesson 0 https://drawabox.com/lesson/0/4/grinding Not so much so that I can tell you off for grinding (though that too!), but more so for you to understand that the required number of pages isn't there because that's all that's needed for you to fully understand (and demonstrate that you understand) the concepts, but rather because that's all that's needed for me to understand if you understand. Even if it's not obvious from the page, I'll be able to tell. It's kind of my job, y'know? So, if at all possible, please don't grind.

Anyway, this is a solid submission. A few things...

It's a little hard to tell if you're doing it (I think you might be? sometimes?), but, just to be safe, I'll mention that you should plot start/end points for all of your lines (including and especially the non-diagonal lines of the planes.) In regards to the rough perspective exercise, remember that any lines that don't head to the VP can either be parallel to the horizon or perpendicular to it- nothing else. Also, because of the rules of perspective, the back face of the box is of a similar shape to the front face, just smaller. That is to say, if the front face is a square, the back face cannot be a rectangle. So, if your points suggest a line that doesn't behave as you'd expect it to, that means that they're incorrect, so don't commit to them. The rotated boxes exercise is fairly good. The back faces don't rotate as much as they should, but that's alright. Good job on the organic perspective exercise, too.

Consider this submission marked as complete~

GL on the challenge~