Yeah its not something to worry about, I'm pretty sure everyone got overwhelmed by the rotating boxes, but the result looks nice.

This is not a big problem really, but next time I think you should submit your homework in order, especially the 250 boxes, it would be really hard to see your progress if u dont sort it. Anyway I'm gonna review your homework with Elodin's template.

Lines: Overall about lines, its nice, you didnt rush it, you dont have much fraying at the start point for example at the Superimposed Lines, Ghosted Lines too looks good too but I think you theres too much empty space, but its nothing to worry about, I'm pretty sure you already incorporate drawing lines to your warmup routine, if not you should do it or maybe construct 1 2 boxes.

Ellipses: Ellipses looks pretty good although i noticed in some ellipses that you didnt draw the ellipse 2 or 3 times and it seems that in the Ellipses in Planes you seem to prioritize fitting the ellipses into the planes instead of making a good smooth ellipses so thats 1 thing you should keep in mind.

Boxes: Nothing to critique here really, I like your boxes, you seem to understand the principle of perspective pretty well, sure you miss a lot of the vanishing points but that you will practice in 250 boxes.