Hi Kukuu, I will be helping you out with some critique:

Organic Forms With Contour Curves: try to remember that the sausages are two balls of equal size connected by one tube

https://d15v304a6xpq4b.cloudfront.net/lesson_images/7f789bfa.jpg

Alot of you tubes end up getting smaller or bigger on one end. The other issue with these is that the degree change in the contour curves are very slight, and you could make them more extreme to make them look even more 3d.

Insect drawings:

These are overall very nice. They're are a few things you can do to improve it though.

First of all, the line weight. In drawabox we only add extra line weight if two 3d forms are overlapping. You don’t need to add line weight to the outside of the drawing, its unnecessary for these exercises (it makes it look pretty, but that is not the point of drawabox). Adding unnecessary line weight can make the drawing more messy. Also remember that when doing detail, to ghost every line and make sure they are clean and confident. For the most part, your drawings do a good job of this, but there are a couple spots where the detail gets mess and wobbily Remember to draw the shadow shapes and not the outlines of the detail.

Sometimes, you add line weight to a form this should be under another form. In the drawing of the cricket, the abdomen has added line weight even though it is underneath the wings. The line weight there makes it very visually confusing.

Remember that if you are drawing the pattern on something, (like the black spots of a ladybug) to only outline it and don’t fill in the shape of the spot with black. Filling it in flattens out the form and also makes it harder to tell what is happening with the construction underneath

The main gripe is that you did not include any insect drawings in the exercise that don’t have any detail. This makes it a bit hard for me to judge now good your construction is when it is covered by the shadows and detail you added.

This is why I am going to request that you do 2 more insect drawings. Draw them big, one per page. Do not include any detail or shadows, only construction. If you want to draw the cast shadow on the ground, only draw the outline of the shadow and don't fill it in with black. Please provide the refrence images you use in the post. Add line weight only where the forms overlap.