Starting with your organic forms with contour lines, you're largely doing a pretty good job. You're mostly sticking to the characteristics of simple sausages (not perfectly, but getting there - you've got a few ends that aren't equal in size, and some that aren't quite circular in shape, but mistakes do happen). Your contour lines are drawn properly as well, fitting snugly within the silhouette of the forms.

Moving onto your insect constructions, overall you're doing very well. I'm seeing a great deal of respect for the concepts covered in the lesson, primarily in the idea that what you're working with here aren't flat shapes on a page, but rather solid, three dimensional forms that are being combined in a three dimensional world. There are some suggestions I have for you as you move forwards, but all in all you're doing a great job.

The first thing I want to talk about is contour lines. It's very, very easy to end up drawing contour lines that don't necessarily end up contributing much to the drawing itself, and in fact the first kind of contour lines we learn about - those that sit on the surface of a single form - are actually a lot less necessary than we might think. They can certainly be quite useful, but they suffer from diminishing returns - meaning that if a form already feels solid and three dimensional, adding another isn't going to do anything. If the first one has a lot of impact, the second will have much less, and the third even less than that. Worse still is that some students will draw many contour lines without actually putting much effort into each individual one (opting for quantity over quality) - fortunately that is not something I'm seeing here.

To put things simply, just make sure that before every mark you draw, you ask yourself what precisely this mark is meant to contribute, how it is going to go about doing that as effectively as possible, and whether another mark is already doing so (or whether another mark could do so better).

Looking at this beetle for instance, the contour lines on its back don't actually contribute much. In fact, the clear intersection defined between the abdominal shell and the thorax shell probably would be enough to make the abdominal shell feel solid on its own. Looking at the orchid mantis however, the contour lines on its abdomen are useful, because you use them to create the additional segmentation. It all comes down to the purpose the lines serve.

The second thing I wanted to call out is pretty minor - just remember that in these drawings throughout this course, we are not getting into shading and rendering. As we see in your ladybug, it's not uncommon for students to forget this and get caught up in the idea of "decorating" their drawings in the detail/texture phase.

What we're doing in this course can be broken into two distinct sections - construction and texture - and they both focus on the same concept. With construction we're communicating to the viewer what they need to know to understand how they might manipulate this object with their hands, were it in front of them. With texture, we're communicating to the viewer what they need to know to understand what it'd feel like to run their fingers over the object's various surfaces. Both of these focus on communicating three dimensional information. Both sections have specific jobs to accomplish, and none of it has to do with making the drawing look nice.

The last point is that while I noticed you trying to use the sausage method quite a bit, there were definitely places where you weren't quite sticking to simple sausage structures (sometimes they'd get a little deformed), and more importantly, there are better ways to build upon those structures. I know you employed the technique shown in the wasp demo, but I'm going to be replacing these in the coming months. Here's a better approach - basically wrapping forms around existing structures and defining how they relate to them, rather than encompassing forms to have them float more loosely within them. This idea of "wrapping" forms around one another as shown here can be very useful in capturing the complexities of these structures, as shown in this ant leg demo and even this dog leg demo - showing that it will be just as relevant through the next lesson.

So, be sure to keep that in mind. Other than that, your work is coming along very well. I'll go ahead and mark this lesson as complete.