Starting with your organic forms with contour lines, you're definitely aiming for maintaining the characteristics of simple sausages as mentioned in the instructions, but there are definitely some deviations. I can see one where you've got one end way bigger than the other, but more importantly, I see quite a few where the ends are getting more stretched out rather than remaining entirely circular.

It is pretty normal for students to struggle with these sausage forms, and they do get more difficult when they get narrower (like on the page with your wasp demo drawing). One thing that can help is to continue applying the ghosting method, but to work towards slowing the execution down as much as you can while maintaining a confident pace. There's a reason I generally talk about executing one's marks confidently - not specifically "quickly" even if everyone understands it that way. Speed is the easiest way to achieve confidence at first, but as we get more experienced with the ghosting method, we become more capable of executing our marks more slowly without wobbling and hesitating. That's what comes into play here.

Moving onto your insect constructions, I can see that you're definitely trying to focus on building up your constructions by working with simple forms, and trying to keep yourself from jumping ahead into greater complexity too quickly, and that is certainly a good thing. It helps lend to the believability of many of your constructions. There are however some issues that I will draw to your attention.

First off, once you've placed a form in the world, do not attempt to redraw or alter its silhouette. The silhouette of a form is just a flat shape that sits on our page, but it represents the actual 3D form that exists in the world of our drawing. Some students will attempt to change that silhouette in order to quickly and easily introduce more complexity into their drawing, but in doing so they are not changing the 3D form. They are merely breaking the relationship between silhouette and form.

Let's take a look at this ant. I've marked out areas where you cut into those initial masses in order to 'refine' your forms. In this diagram, I explain precisely why this kind of alteration breaks the illusion that we're dealing with 3D forms, and instead leaves us with flat shapes. It is possible to do this correctly in a way that maintains the illusion that both the piece being cut away and the piece remaining are still three dimensional, but this doesn't work particularly well for organic subject matter. Instead, it's best to work additively, as shown in this beetle horn demonstration and in this ant head demo. I've also got this more recent lobster demo which employs a great deal of additive construction throughout its process.

Moving forward, a minor point to keep in mind - back in Lesson 2, we talked about leaving form shading out of the drawings for this course. There are a few places where you added an amount of shading, likely with the intent of exploring texture. Often when students gravitate more towards shading, they're getting more caught up in the idea of 'decorating' their drawings.

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 thing I wanted to mention actually circles back to the first point discussed here. It's very clear to me that you're making a conscious effort to employ the sausage method for constructing your insects' legs. There are definitely shortcomings here, but as a whole you're trying to build simple sausage forms and to define the joints between them with contour lines. While there are definitely drawings where you're employing basic sausages fairly effectively, like this beetle, but there are others like here in this mantis where you have used ellipses instead of sausages, which is incorrect.

Furthermore, in the beetle I just linked, you were very sloppy in adding anything beyond that sausage structure, drawing the little protrusions as haphazard lines. The sausage structure we start with is really just a base. We can then go on to build new forms on top of it, as shown here and here and demonstrated in this ant leg demo. We can (and should) even employ these same principles when working with animals, as shown here on this dog's leg.

Overall there is definitely a lot more attention to be paid to your references, to identify the complex segmentation and structure that exists on the legs beyond the basic sausage structure.

Now, I've shared a number of things for you to work on here. I'm going to assign a few pages of revisions below, so you can demonstrate your understanding.