Hello Logi!

Right into the review -- this looks like an excellent submission. I don't have much to say for the most part, your lines look great, clean, straight, point to point, very well planned out and confidently executed. Same goes for your ellipses. Well done! One remark- when it comes to your ellipses in planes, draw through then 2-3 times, no more. Other than that, looking good. Your ellipses in funnels look great too, aside from the few suffering from the draw-through issue I just pointed out. Rough perspective looks good, though be mindful of where you add your line weight. There is no need to draw over each line twice as this does not add anything, and can hinder you in making your lines look messy. Typically, reserve line weight for the outside silhouette lines. More on that here.

Moving on, rotated boxes look good, though it seems you went over your lines in the back of the boxes multiple times again, which, as I've said, isn't necessary, since the goal is to use ghosting to avoid multiple faint lines on the paper, and only execute it once you're confident. ((Edited to add here: Keep in mind the back faces of your boxes turn very long -- they are meant to be more so like cubes, in order to be able to rotate properly.))

The organic perspective exercise all in all is good, though I would like to direct you to this section, in particular this bit from the foreshortening notes:

The foreshortening of an object tells us certain things about it. If an object has really dramatic foreshortening, it's usually either VERY large (like when you look at the top of a tall building from the ground, there's a visible size difference in the base and the top), or it's extremely close to your eye. If it has shallower foreshortening, it's going to either be smaller, a more relatable human scale, or very far away.

It is important that you keep this consistent in your scene. That is, if you have two objects that are meant to be the same size, it isn't necessarily enough just to have the closer one be bigger and the farther one be smaller. If you have the farther one have more dramatic foreshortening, that's going to immediately be glaringly inconsistent, and your viewer is going to have trouble making sense of it. For that reason, I use more dramatic foreshortening quite sparingly.

You may benefit from going through organic perspective just one more time, with these notes in mind. In your homework, the sense of scale, while apparent, isn't conveyed quite as dramatically as possible. But I do like the adventurous feel :)

All in all, great job with the exercises! And you should strive to stick with this, with the way you've started I would be very excited to see your 250 boxes. Good luck!