Starting with the organic forms, they're looking good in general. They do have some issues (some of them don't adhere to the simple form we're aiming for on these exercises; some pinch, some are a bit more stretched ellipse-like) but in general they're good.

In the insect drawings, I think you're on the right track, you're drawing them pretty big which is great, and are understanding the general idea. I'll mention all the issues I can catch:

-The lineweight in general tends to get a bit scratchy at times. Don't forget that you should be ghosting every line you do, and doing them with your shoulder in a confident motion. If they go wrong, move on, don't draw over them, as repeating them will only make the drawings messier. There are also a few places were the overall lines are wobbly and not confident. In normal lines as well always ghost and always prioritize confidence over accuracy.

-The organic forms on the legs tend to have issues. Main problem I see is that you're treating them in a lot of cases as stretched ellipses instead of the 2 balls connnected by a tube of consistent width.

Here is an example I made, hopefully it makes it a bit more clear.

-There are a few places as well, where you don't hook your contours, like on the horn of the horned bug, or the ant. Be careful to do it, because this issue makes the drawings look a lot more flat.

So, before moving on, I want to see another insect drawing on a 3/4 view occupying the whole page, just like the one's you've been doing. Pay special attention to ghost all of your lines, and do your best to adhere your sausages to the form I mentioned before. If it helps, you can draw a few dots first to mark the overall shape of the sausage, so it helps when you're ghosting.

Good luck and keep it up!