• Superimposed Lines

Very well done

  • Ghosted Lines

Very well done

  • Ghosted Planes

Well done. For the vertical and horizontal lines, remember that these are still to be seen as "In Perspective". You'll see much more accurate results in getting it centered when you do so.

  • Tables of Ellipses

Very well done

  • Ellipses in Planes

Very well done

  • Funnels

Very well done

  • Plotted Perspective

Very well done

  • Rough Perspective

Very well done

  • Rotated Boxes

Very well done

  • Organic Boxes

The change in distance and perspective for your boxes is good. But your boxes seem wobbly and not three dimensional. You should remember that each of the vertices lie on a perspective plane and traveling towards a vanishing point, much like the previous perspective exercises. I think you've understood the assignment and should move forward. The 250 box challenge will help immensely in this regard