Just want to add on my two cents.

In general, your lines tend to arch. Make sure you are drawing from your shoulder, using the ghosting method a solid amount of times, and drawing confidently.

You're accuracy is not an issue at this stage, but I want to remind you to use the ghosting method throughout each excercise and every line.

Lines

Some fraying at both ends of superimposed lines, but this improves in your later exercises.

Ghosted lines also has this issue, make sure you are positioning your pen directly on top of one of your plotted points before drawing the line. This issue goes away later it seems, so maybe you already know this.

Ellipses

A lot of floating going on in your table of ellipses. Also could have filled in a lot of gaps to make more efficient use of space.

You're ellipses in planes is a lot better. Still some floating going on.

Floating in the ellipses in funnels; overeaching bounadries as well. Your minor axis does not go all the way through the funnels, and at one point is not in the middle of the funnel. Still good overall; you have confident lines here.

Also, you didn't need to redraw the planes for the ellipses exercise, you could have just put them in the planes you drew for the lines section. Make sure to read instructions carefully.

Boxes

On plotted perspective, it seems like you drew the line to connect the boxes edges and the lines that connect to the vanishing to seprately? Or maybe that was just when you added line weight. Either way the angle seems to change slightly.

Some arching lines in rough perspective. Also, there are a lot of boxes where the lines are not parallel to the horizon line nor the side edges of the paper. Not an issue at this stage, but something to keep in mind for future exercises.

The gaps are sometimes too large in rotated boxes. Otherwise great job, this is an incredibly difficult exercise.

For the first two frames of organic perspective youre box sizes don't seem to change size consitently, although this problem dissapears in the last frame. Just something to notice.