Starting with the organic forms with contour lines, the contour curves themselves are coming along very nicely. The contour ellipses you're placing at the tip of the sausages however aren't so great - they all seem to be drawn as circles, rather than having their degree roughly match the contour curves that precede them. So you might have a fairly narrow contour curve just before on the top left of this page, which suggests that the form is flowing across our field of vision (rather than coming straight at us), but you're still drawing a really wide ellipse right after, which tells us that the sausage is coming towards the viewer.

As for the insect constructions, it appears that both of the drawings you've done here are copies of the demonstrations themselves. While these are allowed to be part of your original submission (though they must make up less than half of your total submission), this is just to get you started before you go on to tackle your own references and attempt the problem solving on your own.

When you get revisions, it isn't terribly useful for you to submit work that was just done following along the step by step demonstrations. The revisions are assigned so you have the opportunity to demonstrate your understanding of the material, how to apply it yourself.

I really hate to do this again, but try the revisions a third time. Your line quality and construction is coming along decently, but it just doesn't make sense for me to accept demonstration drawings for these revisions.