Another drawabox beginner here, overall it's not bad.

Super-imposed lines, good, keep it tighter Ghosted lines, okay, first work on accuracy, after that don't over or under shoot Ghosted planes, above should be appiled here too but accuracy is better here, so you should focus on not overshooting it and undershooting it (meaning drawing too long or too short lines) Table of ellipses, it's okay, when drawing vertical ellipses keep the gap less, i think you should rotate the page more and find a better side, also in an addiotinal note, don't do pinched elippses where top and bottom have edges Ellipses on planes, it's better, keep those lines tighter! Ellipses in funnels, it's good, the degrees matches, good job Plotted perspective, yeah it's good Rough perspective, ghost more, i ghosted from the point i placed to the vanishing point to prepare my muscles, of course doing partly the way isn't bad Rotated boxes, top planes are okay, it makes sense, just note that the whole things could be wrapped around an ellipse, meaning nothing shoud be poking out than the rest, should follow the rotation and shriking along the way

About the 4 boxes at the ends of the axes, they are ment to match the smaller box inside your box at the center, this will help you shrinking things, because the overall box size shouldn't be smaller than it

Finally, about the bottom side of the box, i think you worked from the top first and then made your way down, which isn't bad, just try to keep the bigger picture in mind when drawing, and remember they should always fit nicely within a ellipse, or the direction in which the neighboring boxes fall into

Organic perspective, I think you are aware of the little flaws here and there, somethings taper upwards when it should be falling back, specially at the top plane, think about how the interior lines would go when you place each of your lines, just to provide a good tumb of rule, to put it in simplistic words, some corners poke out too much

I like how they spiral toward down, why i didn't think of that while doing it!

Overall, congrats

I may had an oversight but i hope you embark on your journey diligently and improve even more in the future!