Lines are pretty confident in general, though they get a little bit of wobble at times.

In these exercises, you should always prioritize confidence over accuracy.

A wobbly line will always be worse than a confident line, no matter how off the confident line is.

If you take a look over the ghosted lines notes you'll see the levels of lines:

Level 1: Line is smooth and consistent without any visible wobbling, but doesn't quite pass through A or B, due to not following the right trajectory. It's a straight shot, but misses the mark a bit.

Level 2: Line is straight, smooth and consistent without any wobbling and maintains the correct trajectory. It does however either fall short or overshoot one or both points.

Level 3: Line is straight, smooth, consistent without any wobbling. It also starts right at one point and ends exactly at the other.

As you can see, wobbly lines aren't mentioned, which means that they would be worse than level 1.

You also aren't drawing starting and ending points before drawing every line in the ghosted planes. You should do it always, as it's super important for doing ghosting.

Ellipses are pretty neat too, though a bit of wobble here as well, remember, confidence over accuracy always.

I recommend drawing through them 2 times only as well.

Boxes are pretty neat too, though they have issues:

You're repeating lines, no matter how off a line is, don't repeat it, keep going as if it was correct.

On rotated boxes, some of your boxes weren't actually rotating, careful with that, this mistake is explained here.

Lines are getting a bit more wobbly here, remember, confidence > accuracy.

Don't forget to draw through your boxes on organic perspective. You should be able to see the boxes, even if they're covered by other boxes. You can add lineweight to clarify their relationship on the line overlaps after.

I recommend trying more overlaps as well. You can clarify after the overlaps by adding a confident, drawn with the shoulder superimposed line on the part of the silhouette of the boxes that overlap. Perspective on them has issues but you'll work on it on the box challenge, so don't worry about it!