Arrows are good. Since you got the basic concept down, something you could do to challenge yourself is playing more with foreshortening. Also you can try to make the gaps that run along your arrow smaller, even overlap them, so it looks like the arrow comes straight out of the page more; I find this harder to do, personally. Keep trying to try to find new ways to push those arrows out of the page. That way you'll know how to expand your scenes far back into space when you're drawing outside of the course.

Let's take the arrow in the lower left corner of the second page. Good lineflow and shading, although the shading in the fold that is nearer to the viewer is overdone and doesn't follow the form. Overall, it would've been more powerful if you made the part that is nearer bigger in relation to the others. The part farther away should be smaller too. Stuff like this will make your arrow less diagonal and more like jumping out.

Sausages: You have a hard time turning those ellipses in space consistently and with intent. You have to communicate to your viewer that a sausage comes from one point in the back in the page to another point in the front, basically. So the ellipses in the front of your sausages need to be slightly narrower that those in the back part. You have to transition gently from narrow to wide. It's important that the ellipses that are next to each other make sense with each other. Remember, the back is always slightly wider than the front.

Texture: Good note-taking! I can see you took your time to observe your subject closely, and that you went over your notes as you did the exercise; observation is key. You also resisted the temptation to scribble. However, there are places where your lines don't communicate much, and I get that, it's hard to translate what you're seeing into black and white. But it's important to keep in mind that every line should have a purpose. I can see that your second subject was quite hard. But you saw that you were rushing it and you tried to step back, that's important. You killed it with the third one, very good.

Dissections: Good job overall. This exercise is very tedious, and I can see that sometimes you were forcing it too much just to finish a texture. Again, it's important to step back. Every line should have a purpose for the overall thing you're trying to achieve. The whole point of this exercise is to teach you how to observe, and you can't observe well if you're tired. Often in drawabox forcing yourself forward misses the point of the exercise.

Form intersection:I don’t have much feedback here, you understand how forms intersect and I don’t see any mistakes.

Organic intersection: Your sausages are consistent. There is improvement in that sense since the last sausage exercise. The problem in the first page is clarity, because there are too many lines with the same thickness, nothing stands out and it’s hard to read. You gotta think about what you wanna highlight in order to separate your forms, then add an extra pass to the lines that need one. Also, there are forms that are not shaded and others whose shadow is too big, which doesn’t help with the clarity stuff. The second page is better, it’s more clear.

Congratulations on finishing this lesson! :) I know it takes a lot of work. Remember to draw for fun as well and don’t miss the bigger picture. Good luck!