Superimposed lines: Your lines show abnormal amounts of fraying, please try to make them converge a little more. You can take a look at this link for drawing lines more confidently, https://drawabox.com/lesson/1/superimposedlines/wobbling

Ghosted lines: Your lines wobble a little, check this out. https://drawabox.com/lesson/1/ghostedlines/wobbling. You also don't want to redraw lines. There's also some slight bowing of lines, try looking at this link, https://drawabox.com/lesson/1/ghostedlines/arc.

Ghosted planes: Some lines don't quite reach their intended point, some overextend also. You don't need that many planes on a page if that helps declutter too.

Ellipses in planes: Don't overdraw the ellipses, keep them confident.

Table of ellipses: Same thing as in ellipses in planes.

Funnels: Same thing.

Plotted perspective: Should have slightly more boxes, 4-6. Make sure you're drawing through forms also.

Rough perspective: Plot lines back to VP. Good confident lines.

Everything else that Tempestsnow said looks good now as well. Just remember to keep these things in mind. Also use a fineliner if you can :D