There's definitely improvement here, but there are also issues I'm seeing that suggest that you don't fully understand certain concepts:

• You're steadily getting better at sticking to simple sausage forms, though this is something you'll have to continue to practice in order to keep the ends of sausages more equal in size, and maintaining a consistent width through the midsection. These characteristics of "simple sausages" are important especially for later lessons where we rely on these as important aspects of complex constructions. Those simple characteristics help the forms feel solid, rather than reading as flat shapes.

• In your contour ellipses, you're still ending up with a lot of cases where the degree of your ellipses remain fairly consistent. I can see some effort being put into shifting those degrees, but it's pretty minimal here. You are also still struggling to control your contour ellipses, and will definitely need to practice them a great deal to improve on this. Make sure you're applying the ghosting method to the ellipses, and that you're drawing them from your shoulder. Both of these strategies should help you tighten them up and improve their accuracy.

• The degree shift is much more prevalent in your contour curves, and the sausage forms here are generally closer to the 'simple sausage' definition. There is one major issue however - you don't appear to be using the little contour ellipse at the ends of the sausage forms correctly. The way the contour curves are drawn tells us which way the ends of the sausages are oriented - whether they're oriented towards the viewer, or away from the viewer. Here's a diagram explaining how some contour curves will suggest that the tip is pointed away from the viewer (and therefore no contour ellipse should be visible at that tip), and how some have the tips pointing towards the viewer (allowing us to see the full contour ellipse at the tip).

• I'm pleased to see that your form intersections have more attempts at figuring out the actual intersections between the forms. As I mentioned previously, I by no means expect these to be correct - it is about getting students to start thinking about how the forms can relate to one another in space. This is something we're going to explore a great deal throughout the course as a whole. That said, you should not be attempting to use 3D modeling software to see how those intersections actually turn out. The purpose of having students try and work through this in their minds (mistakes and all) is to develop their internal mental model of 3D space. Yes, it's difficult, and yes it will take time for it to develop, but by looking at 3D models in Blender, you're merely going to be memorizing specific configurations rather than actually developing your understanding of how they work.

• As mentioned in the instructions, avoid forms that are stretched in any one dimension when doing the form intersections exercise.

Just to show that you do understand the bit about the contour lines and how they signal whether the end of a sausage form is pointing towards or away from the viewer, I'd like you to do one more page of organic forms with contour curves. Keep working on those simple sausage forms as well - there was significant improvement between the page of forms with contour ellipses and the page of forms with contour curves, so it's clear that you're getting better on that front, so I hope to see even more improvement with that on your next page.