Hi there, TA Meta here to review your work, so let's get started!

Beginning with your superimposed lines, these are looking smooth and confident. You've taken the time to line your pen up with the starting point, which has limited fraying to one end of the line, which is great to see. Next, your ghosted lines and planes are fairly straight and confident, I did notice a little bit of wobble on your planes, so make sure you're focusing on getting a confident line before an accurate one.

Onto your tables of ellipses which are looking pretty good, you've managed to pack heaps of ellipses in there and they're drawn confidently for the most part. There is an occasional wobble here and there, particularly in the smaller ellipses which might suggest you're inadvertently engaging your wrist here.

Your ellipses in planes are looking quite confident, though I do see some evidence of a preoccupation with accuracy, particularly on the first page. Again, remember that we're aiming for a smooth, confident line rather than an accurate one at this stage.

Finally, your funnels are off to a good start, the ones on the left hand side of the page are quite well done with minimal skewing off the minor axis. There do seem to be some wobbles and oddly shaped ellipses particularly on the outer edges of some of your funnels, so make sure you ghost those out fully and try not to let your brain interfere with the execution of these.

Next to your rough perspective and you've made a clear effort to keep your horizontals parallel and verticals perpendicular to the horizon line. Occasionally these don't line up fully, but the boxes themselves are pretty good in terms of convergence, with the boxes that stray from the vanishing point tending to do so in a predictable way (boxes further away are less accurate). Your line confidence is pretty good here though I can see a little doubt crept in with some of your wobblier lines.

Onto your rotated boxes now and you've done a fantastic job keeping the gaps between your boxes consistent, this has helped you rotate the boxes and eliminate guesswork. The rotation on the diagonals is quite good though the ones on the cardinal points tend to follow the vanishing point of the previous boxes rather than sliding along the axis. That said, these last two exercises are intended as an introduction to new kinds of spatial problems that you can leverage in your 250 box challenge.

Finally, your organic perspective is looking great, you've varied up the size of your boxes in order to explore the scale of the compositions, which conveys a good amount of depth in each scene. It's great to see that you've taken the time to plan out each line of your boxes and committed to those lines with confidence. As you noted, it's clear you learnt a lot from your mistakes and whilst there's still a bit of divergence in your boxes, you've set yourself up in a good spot for the box challenge.