Starting with your organic forms with contour lines, these are looking good, save for one issue - you appear not to entirely understand where it makes sense to draw the little contour ellipse at the tips, and when not to draw it. Basically we draw the contour line all the way around when that tip is actually pointed towards the viewer. The other contour lines will generally help us understand whether the form is ostensibly turned towards the viewer or not, as explained here. It's important that you don't draw marks without understanding what they're communicating about what you've drawn - always make sure there is an intended purpose behind each and every line.

Moving on, looking at how you've approached much of your insect constructions, I'm largely quite pleased with your results. You're demonstrating a good grasp of how many of your forms exist together in 3D space, and how to build up your construction from simple forms to achieve a complex object that still maintains the solidity of those individually simpler components.

There are a few things I want to point out however to keep you on the right track, but as a whole you're doing a good job.

The first thing that jumped out at me is quite minor - it's just that when using the sausage method for constructing your legs, you appear to be skipping the important step of reinforcing the joint/intersection between the sausage segments with a clear contour line as shown in the middle of this diagram. Secondly, when you want to build upon those sausage segments (which you do on occasion, although I think there's often a lot of room for further building up complexity on those legs further than the basic structure you tend to use), the best way to approach that is by introducing new forms on top that themselves wrap around the existing structure, as shown here, here, and even here with this dog leg. The key is that rather than simply making adjustments to the silhouette of an existing form (a change that exists entirely in the two dimensions of the drawing), we want to make a change to the actual 3D structure by creating a complete new form.

The only other thing I wanted to mention is that overall, I'm fairly pleased with how you've approached the touches of detail here and there, but there are a few places where you appear to mix up some form shading into your detailing. Remember that as discussed back in lesson 2, we don't actually want to add any form shading to our drawings, as you did here and in some of your other earlier drawings. Your later ones were much better in this regard, like those on this page all focusing entirely on the idea that detail/texture is all about conveying information about what it'd be like to run one's finger over those surfaces, rather than just a manner of decoration. That last page there is especially well done in all areas, and as such I'm very pleased with the growth you've shown over the full set.

All in all, you're doing very well. I'll go ahead and mark this lesson as complete.