None of these are actually 3/4 views. By 3/4 view I mean where they're halfway between seen from the side and seen from the front. All of these have been fully side views (although the honey bee is starting to get into 3/4 territory, but still mostly side).

It seems to be more difficult than I expected to find a wasp that isn't featured in a side view, which is unfortunate. I did find this, which is getting into 3/4 territory, and is good enough for our purposes.

All that said, I think your first drawing, the one of the wasp, is actually very well done. The thorax is a bit big, proportionally speaking, but the segmentation on the abdomen is well done, the head construction's coming along well, and you've done a pretty good job of constructing the legs.

Your honey bee's also looking pretty good (although again the proportions throw things off a little), and the horse-fly's legs are a bit off but still generally pretty good.

All things considered, these are good enough, so I'll go ahead and mark this lesson as complete.