Lines

Starting with your superimposed lines, you're doing a good job lining your pen up with the starting point which is minimising fraying to one end of the line. You are tending to pull your arm back into line with the original guideline rather than confidently accepting the trajectory of your line.

Next, your ghosted lines are hitting the end points pretty well however you do seem to be more focused on this accuracy than confident execution which results in wobbling. This does improve a little bit in your ghosted planes, but make sure you're prioritising confidence over accuracy as accuracy will come with time and practice.

Ellipses

Your tables of ellipses are exhibiting a nice range of different shapes and sizes of ellipses, all packed in there nice and tight. The execution of the ellipses themselves is a bit hit and miss though, as you tend to end up with one end coming out quite pointed. This could indicate you need to ghost more before you execute, you're allowing pivots other than your shoulder to mix in while executing, or that you're slowing down while drawing them... or even some combination of the three. Some of your larger and wider ellipses are actually pretty well executed and it's good to see you drawing through them, so I expect the ellipses with a smaller degree are something you need more practice with.

Next your ellipses in planes are doing a good job of hitting the four sides of the plane however you have again focused too much on accuracy here which has deformed the shape of your ellipses. There's some really good ones here so I suspect you're just overthinking things as you draw your ellipses.

Finally your funnels are showing a fair understanding of aligning ellipses to the minor axis though once again your confidence has suffered here again due to the previously mentioned issues. There are a few that are skewed quite badly, and they also tend to be the ellipses that are less confidently executed.

Boxes

Next your rough perspective is quite well done. You've made a solid effort at keeping your horizontals parallel and verticals perpendicular to the horizon line, with the exception of a few of the back planes. Your line confidence here is much better than what we saw previously and your estimation of perspective is really not too far off the mark, with the boxes further from the vanishing point tending to stray the most, which is normal at this stage.

The line confidence on your rotated boxes is also bang on point. You kept things together for the first couple of boxes you drew but then things very quickly devolved into guesswork as your lines got further and further from each other. We try to keep the gaps between the boxes nice and tight together because they give us contextual hints about where to place the next box in order to rotate it. That said, this exercise (and the following one) are intended as introductions to certain concepts that we will refine our understanding of as we progress through the box challenge and beyond.

Finally, you've done a pretty good job conveying a sense of depth in each of your organic perspective compositions with the variation in the size of your boxes as they come closer towards the viewer. If you wanted to push this illusion further, you could fill more boxes in at the smallest (furthest) end of the line and begin overlapping boxes as they get larger and closer to the viewer. The boxes themselves have a bit of divergence going on but that's entirely expected at this stage and the reason we assign the 250 box challenge.

I was really happy to see the way your line confidence improved throughout the set however before you move on, I have listed a couple of revisions below.