In general, please try to keep all of the images in only one link. Using one link for each image makes the critiques take way longer.

Starting with your lines, they're pretty confident and accurate overall, good job! Just 2 things.

On the superimposed lines, you got fraying on both ends. Before drawing a line, make sure that you put your pen at the starting dot of that line, otherwise it might fray.

On ghosted planes, you haven't plotted some lines. Keep in mind you need to always draw starting and ending dots before drawing any line.

Ellipses are pretty confident and clean overall, good job! On the funnels keep in mind that the central line (The minor axis for the ellipses) needs to cut them in 2 simetrical halves, so aim for it. Even if the curves are misplaced, ignore them if necesary. Main objective is to allign the ellipses to the minor axis.

On the bottom right ellipses, you've drawn 2 minor axis for the ellipses. Ellipses can have only 1 minor axis. The ones on the example where lines that were off, so they were redrawn.

In boxes as well it seems like you haven't plotted most of the lines. Just like I mentioned before, start each line by drawing the starting and ending dots, otherwise you won't be able to ghost it properly.

You also seem to have missed some lines and tried to redraw them. If you miss a line just leave it be, don't correct it as it will make the drawing messier.

On rough perspective you have trouble to make some of the vertical lines perpendicular to the horizon and some horizontals parallel to it. It's hard, but make sure you're aiming for it, It'll get easier eventually.

On rotated boxes you got confused (which is completely normal. But you haven't kept things together, and you haven't rotated the boxes. You've also tried to redo lots of lines you weren't sure with. Here as well even if you don't like your lines, don't redo them, it makes the drawing way messier and harder to read.

And lastly on organic perspective more of the same, you're repeating lots of lines, that's your main issue. I also think you aren't plotting your lines here as well, so careful with that too. In general put more care on each line you do.

Overall good job, but you've had some of the major issues on the rotated boxes, It looks like you haven't plotted lots of lines, and you've repeated a lot of them too. So before moving on, I want you to repeat rotated boxes. I'm not expecting you to do it perfect, I just want you to make sure that you approach the 4 issues I mentioned.

-Repeating lines that were off

-Not drawing starting and ending dots before drawing a line

-Not rotating the boxes

-Not keeping the corners between boxes close.

Good luck with it!