Lines:

Your superimposed lines shouldn't have fraying at the beginning, when drawing them you should carefully place your pen at the beginning dot.

Your ghosted lines look a wobbly, you need to ghost your lines carefully until you feel confident enough to actually draw.

Your ghosted panes have the same issue.

I feel like you may have been prioritizing accuracy over confidence, since you pretty much always reach your end dots, what you're trying to build is confidence, accuracy will come with practice.

Elipses:

You didn't draw through all your elipses, it's important to do it so you can build the muscle memory.

Your funnels are a bit assymetrical, but they're fine otherwise.

Boxes:

Your rough perspective seems odd in a few boxes, did you perhaps try to draw the boxes without drawing the first square?

Your rotated perspective has a few issues, the biggest one being you didn't take into account the lower vanishing point at the center of the drawing. Which is where all boxes are supposed to be aimed at.

(Here's what I mean by that)

https://imgur.com/a/IieK6Kw

Aside from that, the next issue is that the corners of your boxes aren't as close as they should be.

Here's an example of what I mean: https://d15v304a6xpq4b.cloudfront.net/lesson_images/9a16c189.jpg

Perspective issues are common, but I think you may have misunderstood the exercise, because of that, I would appreciate it if you could revise the rotated boxes exercise.

Your organic perspective looks pretty good on the first page, on the second page the problem is just that you didn't vary the box's rotation at all.