Lines

There are frayings in the beginning of your superimposed lines but it eventually stops fraying as you go on so it's good. You manage to capture to essence of this exercise when you started to just smooth and confident lines even if you're not accurate. You miss a lot of point in ghosted lines. Try to rotate you paper and when you are comfortable draw your line. Some of them, specially the smaller one's, are wobbly it can be reasons like using your shoulder it tend to make our lines wobbly. Same happened in your planes, there are lines that are not connected but it's okey. Confidence over Accuracy.

Ellipses

Ellipses in table has a lot of spaces between the 'boundaries' otherwise you draw them smooth and clean. Your funnels are excellent! The ellipses are aligned to the minor axis. Your ellipses in plane is good, some minor mistakes like not reaching the 1 out of the 4 corners, still good.

Boxes

So one page both in perspective, find the others if you can. Back to the topic, mistake in the center box of your plotted perspective, you have a ruler to straighten the line, try to avoid it. In rough perspective don't over do your lines. The rotated box does not rotate. You need to narrow your lines between boxes, try to make your end boxes to almost intersect to the minor axis. Remember the lesson about degrees. Your organic perspective need some work with your parallel lines and the lines itself.