It looks pretty good overall! There's just a few points that I'll mention.

One thing I noticed about the ellipses in planes exercise is that you seem to be circling many times on some of them. In general, you should keep it to 2, at most 3 loops around a single ellipse. Rather than feel out the proper placement of it while you're drawing, you should be ghosting the ellipse until you feel good about the placement, then draw it. Most of them look fine, so just limit how many times you go around moving forward.

For the funnels exercise, you seem to not be taking into account the minor plane- that's the line cutting the ellipse in half along its shorter edge: https://d15v304a6xpq4b.cloudfront.net/lesson_images/cf2c3057.jpg

The goal of the funnels exercise was, in part, to draw an ellipse when the minor axis was already defined.

The mistake: https://d15v304a6xpq4b.cloudfront.net/lesson_images/58039837.jpg

As you can see, the ellipses are not cut equally in half, and they are slanted. The line through the middle should align with the minor axis, and be perpendicular to the major axis.

Besides that, make sure you're increasing the degree of the ellipses as you move outward. It's good practice to make sure you can comfortably work with the degree of the ellipse.

The last thing I noticed was the rough perspective exercise. The goal of the exercise was to estimate the angles of 1 point perspective, then use a ruler to check how close you were. The second step is really important, as it lets you see where you're going wrong so you can correct it. The only other point was that you should double check that all your lines that aren't converging to the vanishing point are either parallel vertically or horizontally. You should place dots to get the placement of the 4 back corners before drawing the line to make sure they are parallel.