Starting with your arrows, you're drawing them such that they flow confidently and fluidly through space. One thing to keep in mind however is that as we look far ther back, the gaps between the zigzagging sections should be getting narrower due to perspective/foreshortening. Right now it seems you're not consistently applying that (though it is more present in some areas than others), so exaggerating this compression of space will help convey a stronger sense of depth in the scene.

Continuing onto your organic forms with contour lines, there are a number of things to keep an eye on:

• First and foremost, make sure you're striving to adhere to the characteristics of simple sausages as mentioned in the instructions. You tend to have forms with ends of different sizes, ends that are more stretched rather than remaining entirely circular, and that get narrower through their midsection instead of maintaining a consistent width. You do improve upon this a little into your organic forms with contour curves, but this is an important point that you need to continue working on, because keeping the forms simple helps them maintain the illusion of solidity more easily, which will be critical when we start to use these as the base components in our constructions.

• Keep an eye on the orientation of your contour lines - especially when your sausage form curves, as that's where their alignment tends to have the most issues.

• I'm noticing a tendency to keep to the same degree fo the contour lines along the length of a given form. 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.

Moving onto your texture analyses, your work here is really well done. You're doing a great job of focusing primarily on clearly defined shadow shapes (especially in the first and third rows), and you're clearly leveraging that to control the density of your textures. In your first row, you probably could have pushed the density of the texture a bit more towards the left side to avoid that sudden jump into the heavy black bar, but the jump wasn't immediate - you did manage to stretch it out over a small distance, that distance just needs to be stretched out further in the future. For the third row, remember that we want to focus entirely on cast shadows when drawing those filled black shapes. Here you ended up leveraging some of the shading on the individual kernels of corn rather than just deepening and growing the cast shadows themselves. In this exercise, we don't want to actually draw the shading of the various forms.

Overall you're doing a pretty good job with the dissections as well, and continue to demonstrate good development in your observational skills, as well as your control over your textures' densities.

Looking at your form intersections, you've done a good job of constructing the forms such that they feel cohesive and consistent within the same space. Your linework is also looking solid, which helps contribute to the solidity of the forms. I do however feel like you vastly overdid it with the hatching. You need only add hatching to one of the flat faces of your forms. Definitely don't add it to the curving surfaces (as they function as contour lines, and will likely flatten that surface out). All things considered, with this exercise you could even leave the hatching out altogether if you wanted.

When it comes to the intersections themselves, I'm pleased to see that you made ample attempts at trying to understand how they'd work. This part of the exercise is meant to serve as an introduction to thinking about how forms can relate to one another in 3D space. This is not something we expect students to understand fully just yet - it's more like planting a seed that we will continue to develop through the entirety of this course. For now, I'm pleased to see that you're moving in the right direction.

Lastly, your organic intersections are looking pretty good, in terms of establishing how the forms interact with one another as 3D forms, rather than as flat shapes. That said, I'm noticing that your cast shadows tend to be somewhat inconsistent. Remember that cast shadows are produced by a light source, and you need to keep the position of that light source consistent. On this page for instance, we can see how some form's shadows are being cast to the right, and others' are being cast to the left. This results in inconsistencies that make the viewer question the illusion they're being presented.

All in all your work is coming along quite well. Be sure to keep on top of the issues I mentioned in regards to your organic forms with contour lines, but all in all you should be good to consider this lesson complete.