Your organic forms with contour lines are definitely improved over last time, although one thing I'm noticing is that the smaller contour ellipses placed on the tip of your organic forms with contour curves aren't always correct. They should only be included when the tip is actually pointing towards the viewer - we can determine whether or not this is the case based on the rest of the contour curves.

For example, looking at this one, the contour curves tell us that both ends are actually turned away from the viewer, so those contour ellipses at the tips would not be visible. In this one, the end to the left side is facing the viewer, so it makes sense to have a contour ellipse there, but the far right side is pointing away, so there should be no ellipse on that end.

Contour ellipses are just contour lines where we can see that whole section of the surface, whereas contour curves are where the contour line continues along the other side. This also means that your contour ellipses should be fairly similar to the contour curves closest to them (for the second one I linked to, the far right contour ellipse was also entirely different from its closest contour curve).

These are things you need to keep in mind as you move forwards. While there's definitely progress here, there's still plenty of room for improvement - that will come with practice, and that applies to the thinner contour lines with which you were struggling.

Your form intersections are also looking considerably better. They're much more cleanly done, and there's a clearer use of the ghosting method. Some of your hatching is still a bit scratchy, so that's something to keep an eye on, but all in all this is a step forward.

I apologize for the typo - I did indeed mean that the first page of organic intersections was better than the second, and this is because the second one did not stick to simple sausages as much, and felt much more like each one was set down on the page as a separate flat shape without consideration for how they actually existed together in 3D space. As a result, the end result did not convey this impression of the pile being three dimensional nearly as clearly as the first page did.

One additional thing worth mentioning about both pages however is that you were expected to draw each sausage form in its entirety - here it appears that you only drew them up to where they were overlapped by a neighbouring form. Drawing each one in its entirety forces us to think about how they all exist together and how they relate to one another in space, instead of just as shapes on a page.

Anyway, I'll go ahead and mark this lesson as complete. Be sure to continue working on your contour lines in your warmups though.