Starting with your arrows, you're drawing them with an excellent sense of confidence and motion, and do a great job of capturing how they move through space. I'm also pleased to see that you're minding how foreshortening would result in the distances between the zigzagging sections compressing and tightening as we look farther back, conveying a stronger sense of depth in the scene.

Moving onto your organic forms with contour lines, you're clearly focusing on sticking to the characteristics of simple sausage forms, and for the most part you do a decent job of it - though there are some cases where one end will come out larger than the other, and some where the midsection tends to grow wider instead of maintaining a consistent width throughout its length. There are two issues that stood out to me however in your organic forms with contour curves - firstly, you appear to be placing the contour ellipse on the wrong end. This is to be placed on the end that is pointed towards the viewer, as explained here.

Secondly, you tend to draw all your contour lines with the same degree. The degree of a contour line basically represents the orientation of that cross-section in space, relative to the viewer, and as we slide along the sausage form, the cross section is either going to open up (allowing us to see more of it) or turn away from the viewer (allowing us to see less), as shown here.

As a side note, you're certainly improving in getting your contour lines to fit snugly between the edges of the form, but there is still room for improvement on that front.

Continuing onto your texture analyses, I'm overall very pleased with your results here. Admittedly your attempt at the crumpled paper is incorrect - there are certainly a lot of good things about it, but you entirely skipped over the instructions of sticking to clear, solid shadow shapes in favour of hatching and more gradual shading. I am pleased however that you shifted this approach in the next two rows, and in doing so you did a great job of controling the density of your textures. In the third row you still relied on hatching a little bit to create those transitions, even though it wasn't necessary. Your actual solid shapes were doing the job just fine, so it's important that you have confidence in your abilities. This entire exercise is about finding ways to replace hatching - so don't slip back into it needlessly.

You continue to do a pretty good job throughout your dissections, although the continued use of hatching here and there is a bit disappointing. You do however demonstrate strong observational skills, and are overall moving in the right direction. As you continue to develop your skills, I think you'll find that your patience will increase as well. You certainly did demonstrate a good deal of patience here, but there are a lot of signs that you may have drawn a little more quickly than you should have, resulting in lines that were a bit more random (though still reasonably well done) rather than specifically designed to replicate particular features from your reference images. This is pretty normal, so just make sure that you always strive to capture specific things you see in your reference when drawing texture especially. Don't try and capture the gist of impression of something, capture what you actually see.

Moving onto your form intersections - great work. You're doing a great job of constructing the forms such that they feel cohesive and consistent within the same space. You've also got a great start to the intersections themselves, which are primarily part of this exercise to serve as an introduction for students, to get them to think about how the forms they're drawing relate to one another in 3D space, and how they might go about pinning down those relationships on the page. This is something we're going to continue exploring throughout this entire course.

Lastly, your organic intersections are similarly very well done. You're clearly capturing how these forms interact with one another in 3D space, and you haven't been afraid of drawing through each and every form in its entirety. You've also captured a strong impression of gravity in how they slump and sag over one another, and have done an excellent job of maintaining their volumes as they do so.

All in all your work is coming along well. I'll go ahead and mark this lesson as complete.