Hello Sades! Overall you've done a very good job, though there are some things I want to comment on, so let's go through it section by section!:

Starting with your lines they're overall pretty confident and accurate, and I can see you don't hesitate on committing to them even if they're gonna miss their ending marks, which is great! If you keep drawing your lines like that accuracy will get better and better with practice.

You're also doing a great job planning them and applying the ghosting method correctly through your ghosted planes as well, so I don't have anything else to say!

Moving onto your ellipses you're also doing great at drawing them confidently. Sometimes your ellipses miss a bit the bounds (they should touch top and bottom lines and the ellipses on their sides), but I can see you're aiming for it! Keep keeping it in mind when you repeat these exercises on warmups and the acccuracy will get better with practice.

The shapes of the ellipses themselves sometimes gets a bit distorted, so try to always remind yourself their symmetrical shapes before drawing them. This only happens a few times on the tables of ellipses, but on the ghosted planes it gets more common, you might be thinking that the centre of the ellipses is the same as the centre of the planes or that you have to change the shape of the ellipses so they touch the contact points, but this is not the case. Ellipses have to be symmetrical and have the same form regardless of where they are, so the only things you can change is how wide the ellipse is and which position it is in.

Lastly on your funnels sometimes you aren't aligning the ellipses to the minor axis. Make sure you always aim for the ellipses to be cut symmetrically by the middle line even if that means you need to ignore the initial curves.

Finally in your boxes a few things:

-Overall your lines are clean and confident even if you are drawing them in boxes, great job! They do get a bit wobbly a few times, so always keep in mind you should always prioritize confidence like in previous exercises, but overall they are pretty confident.

-On rough perspective you're doing a good job at the depth lines perspective guesses, but I can see you have trouble at times keeping height lines perpendicular to the horizon line, and width lines parallel to it. I know it's hard, but make sure you always are aiming for it. You can check if the starting and ending dots are correct or not, and if you find that they aren't you can change them. You can put down as many dots as you want as long as it's before drawing the actual line. It should help on getting it more accurate!

-On rotated boxes most of your boxes are rotating and they are kept close together, so great job! The main thing here is that sometimes you repeated some lines. Make sure you never do that even if they miss their target, as it'll make the drawing messier and encourage bad habits. Lastly, some of your boxes weren't actually rotating.so try to keep an eye on that on future attempts .

-On organic boxes you've done a good attempt, some of your boxes have perspective issues, but you're already doing some good guesses on the perspective. The main thing is that you aren't using the ghosting method properly. Make sure you always draw starting and ending dots before drawing every line when you use it when you go to the box challenge, it's super important so don't forget it.

For the boxes themselves, you can add lineweight to the parts of lines that overlap other boxes with a superimposed line. It can help clarify which box is on top and which behind, so give it a shot when you try this exercise next time.

Overall like I said you've done a pretty good job, just make sure you use the ghosting method and plan all your lines in the boxes on the box challenge. That being said, don't forget to do warmups from now on, and ask any questions you have, good luck and keep up the good work!