Hi Xorkalar! Overall you've done a pretty good job, but I'll go over all the issues I've found so you can keep improving, let's go!:

Starting with your lines they're pretty confident so good job! The main thing with superimposed lines is that some of them fray a little bit at the beginning. Make sure that doesn't happen by placing the pen carefully at the start of every line.

Some lines also change their trajectory a bit, so try to always remember to try your best to make the lines as straight as confident as you can make them. That they touch or not the ending dot is secondary..

Rest of the line exercises are great, good job at committing with your lines!

Moving onto your ellipses they're great as well. Super confident and smooth in general, good job! The only thing I've caught is that your smaller ellipses are a bit wobbly at times. Make sure you always approach those ghosting and with the shoulder, regardless of how small they are. I know it's hard, but remember that confidence and smoothness is more important than accuracy on these exercises.

Good job on maintaining confidence on the ghosted planes!

Lastly on the funnels I've seen that sometimes you don't allign the ellipse to the minor axis. Regardless of if the curves are off or correct, the minor axis should always cut the ellipses in 2 identical halves, so make sure you always aim for that.

In your boxes you've done a fantastic job overall, just a few things:

-Lines are super clean and confident overall even if they're in boxes, though a few times I've seen them wobble a bit. Whenever you're going to draw a line, try to only think on the starting and ending dot of that line, and approach it as if it was an individual ghosted lines exercise, forget that the line is part of a box, it might help on making them confident more consistently.

Other than that you're doing a pretty good job on rough perspective, both mainting the width and horizontal lines parallel and perpendicular, and the line extensions are pretty close to the vanishing point!

Rotated boxes is great as well, you've managed to rotate most of the boxes while keeping everything clean and keeping the corners between boxes together, good job! Only thing I want to comment is that the some of the outer boxes aren't rotating. Try to check if the lines have different vanishing points (are rotating) before actually drawing them. If they aren't, you can redraw the ending dots so they do.

Lastly on organic perspective the main thing is that I think you haven't drawn the starting and ending dots for the boxes. Before drawing any line, make sure that you have a starting and an ending dot, as it's super important for applying the ghosting method correctly.

Second thing is that you haven't drawn through some boxes. Even if a box covers another box it's important that you the covered box completely. You can clarify which one is on top after by adding lineweight with a superimposed line on the overlaps.

The boxes themselves have some perspective issues, but no need to worry about it as you'll work on it on the box challenge.

Like I said you've done a pretty good job, so I'm marking this as complete. Don't forget to do warmups from now on, and keep up the good work! Good luck on the box challenge!