Hello blue_box! Overall you've done a pretty good job, but I have a few things I want to comment on, let's go through the exercises section by section!

Starting with your lines overall you're doing a great job committing to them and drawing them confidently even if they're going to miss the ending dots which is just what you're expected to do! They are specially good on the ghosted lines and ghosted planes, and there is a little bit of wobble in the superimposed lines, so try to approach them as confidently as you did on the other exercises. It's harder because the lines you drew there are longer, but keep aiming for drawing them fully confident.

Another problem is that some of your lines fray on both ends. Whenever you are starting a line , you should carefully place your pen on the start of each line so only a maximum of 1 end can fray.

Other than that you're doing a great job planning carefully al your lines and applying the ghosting method properly, good job!

Moving onto your ellipses you're doing overall a fantastic job drawing them confidently and with smooth shapes! Accuracy is already pretty good in general, you get sometimes some ellipses outside of the tables or make them overlap a bit, but that will get better with practice!

Main thing in this section is that even if the ellipses on the ghosted planes are still pretty confident I think you subconsciously try to change the shape of the ellipses a little bit so they fit the ghosted planes. Try to always have the shape of the ellipses in mind before drawing them. The ellipses are symmetrical, so you can't change their shape if that will make them non symmetrical. To make them touch the contact points only things you can modify are their degree, how big they are and how they're positioned, so try to focus on getting the shape as you did in the previous exercises.

Lastly on your funnels you're again doing a good job on the ellipse, but sometimes you aren't aligning them 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:

-Your lines are still very good here, though at times I can see a little bit of hesitation in them. I know it's very easy to get overwhelmed by the boxes, but try to approach the lines as individual ghosted lines exercise like the ones you did previously. So whenever you draw a line forget about which box that line is part of, it can help on drawing them fully confident more consistently.

-On rough perspective you are doing some great attempts with the depth line convergence guesses already, but you seem to have a bit of 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, so give it a shot!

-On rotated boxes you've done a very good attempt rotating the boxes and keeping them close together. The only things I want to say here is that sometimes you repeat lines that were off; no matter how off a line is, don't repeat it, keep going as if it was correct, as drawing them will make the drawing messier. The other thing is that you have some hatching lines that fray on both ends like they did on some superimposed lines you drew in the lines section. Make sure you place your pen carefully at the start of each line so they don't fray on both ends!

-On organic perspective you're doing a good attempt with the boxes, but the main thing here is that you aren't drawing starting and ending dots before drawing every line. Make sure you always do this, as it's super important for applying the ghosting method properly, it will be really important through the box challenge so make sure you do it! For the boxes themselves they have some perspective issues but that's not a problem as you'll work on it through the box challenge.

Last thing I want to say is that you can add lineweight to the outer parts of boxes that overlap with other boxes to clarify which boxes are on top and which are behind. Give it a try next attempt you do at this exercise!

Overall like I said you've done a pretty good job. Main things are that you should try to loosen up when you draw lines on boxes so they end up as confident as they did on the lines section, and that you plan through every line by drawing starting and ending dots before drawing them. That said, don't forget to do warmups from now on and good luck on the box challenge! Remember to ask any questions you have and keep up the good work!