first of all make sure to take "Non-Blurry Photos"

Ghosted Lines:-

well done on the lines, they are point to point and above all else i don't see wobbliness.

Superimposed Lines:-

I see you did well in superimposing some of the lines but i see a lot of frayings which means you have rushed to finished them. so, one advice for you don't rush and instead rushing Please put the pen down then do the lines again.

Table of Ellipses:-

Again the ellipses are over done, like more than two times

Funnels:-

Same problem, you drew ellipses more than two times so, for the ellipses you need to do the exercise again

https://youtu.be/bsjThiFfbGQ?list=PLQzfPQVzjLdrWojiWIXmafboPte268aaG

Planes with Ellipses:-

I see you going around the ellipses more than two times,

Irshad specifically says, "No more than two times should you circle over to make an ellipse, because it looks distracting."

Boxes with Perspective:-

Rough Perspective :- some of the lines are not landing on the horizon, make sure to land on the horizon, you can refer this back to the rough perspective exercise and ScyllaStew youtube channel:- https://youtu.be/DjQdPZsnok4?list=PLQzfPQVzjLdrWojiWIXmafboPte268aaG

Organic perspective:- This is very good since you are seeing the closer the box the bigger and the farther the smaller so you get the gist of it.

Rotated Boxes:- this one is good.

my final verdict, do superimpose and ghosted lines with controlled speed not rushing, thats all.

But you can move on to 250 Boxes but please, don't rush.