Lines

In the superimposed lines exercises there is fraying on both the start and end of your lines. You should put your pen down on the starting dot then move it to the end. Fraying at this point should be on only the ends.

E.g

https://d15v304a6xpq4b.cloudfront.net/lesson_images/1585f266.jpg

Your lines do look confident and ghosted I don't see any wobbling.

Ellipses

In the ellipses tables you have not drawn through some of the ellipses at least twice. And remember to ghost your ellipses when drawing them in.

In the funnels some are slanted although they are in their bounds and in the top right funnel there are gaps between some elilpses. They should be touching each other.

Boxes

For plotted perspective I think you should divide the whole page into 3 in portrait. Working with things small is not beneficial to get the point across.

For the organic boxes you should plan and plot your line as you do for the rough perspective or in plotted lines exercise.

Rotated boxes

Again

plan your lines with the plotting method.

You have gone over multiple lines and the cross hatching is not using straight lines, many taper . I can see the boxes on the right hand center are in bold, I think U went over them to cover up the lines that where there. But U should use one confident line if it is not straight or misses keep it there and continue. Use one line after U have plotted the line out. And keep it one line don't go over it or try to make it bold to fix it. Over time your lines will start being straight and on target. Lineweight should be added using the ghosting method on part of the line to show overlapping.

Also your boxes don't seem to be rotating. They are more like this :

https://d15v304a6xpq4b.cloudfront.net/lesson_images/d73eea49.jpg

Than this

https://d15v304a6xpq4b.cloudfront.net/lesson_images/6e259e79.jpg

Overall

Plot and plan all your lines

Draw though all ellipses at least twice

Ghost the ellipses