(eta your username made me chuckle)

Your ghosted lines look amazing! The superimposed ones are also very promising, but it'd be great to see the beautiful straight lines from your ghosted lines exercise here as well. To step it up some more I think it'll be very helpful to work on trying to hitting a little closer to the end point for both these exercises (as well as any line, plane, box following), mostly to help with the fraying (for me it helps to put my pen down after ghosting, look at the end point and then execute the mark!). All in all they're solid though gg.

Ellipses in planes -- Your ellipses look smoothly executed and confident! They do overshoot the edges of the plane, so maybe planning a little more carefully would work, but here too, it's solid and with obvious progress within 2 pages.

Tables of ellipses -- a little more wobbly here! Make sure the ellipses are snug and evenly shaped. Not working too small helps in this exercise.

The same goes for the funnels. Make sure theyre touching the edges. I think you could try the optional version mentioned in the lesson here to start narrow near the center and increase the degree as you move outwards.

Plotted perspective -- only nitpick is to also do hatching lines with care!

Rough perspective -- Make sure you're lining your boxes with the same techniques as all other lines: planned well, ghosted, then a single confident stroke. Here most are redrawn multiple times and on the wobbly side. Reread about guessing, ghosting, and maybe this lesson. Same for organic perspective exercise, and rotated boxes too.

You're underestimating most of the converging lines so apply these tecniques accordingly.