Your lines are a little wobbly.

In the ghosted planes exercise, the notes rates lines as:

-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.

To increase the quality of your lines, you need to remove all wobbling and make the lines straight. Straight lines come from the shoulder so when you ghost, make sure the movement is coming from your shoulder. The short, medium and long lines should all be done from the shoulder. Changing up the line sizes for the ghosting lines exercise may help you understand your shoulder better.

Also try your best to avoid repeating lines. Once you make a mistake, leave it. When you place multiple marks, one may be the intended mark but because there are more than one, it is confusing and messy.

Your ellipses wobble. Just like with lines, the ellipses must be drawn confidently, prioritizing confidence and smoothness, over accuracy. Secondly, try to make sure your ellipses touch the lines above, below and to the sides.

Edit: For the funnels, try to align your ellipses to the minor axis. This is very important.

For your boxes, just remember to avoid redoing lines. In the rotated boxes, draw through all your boxes. You missed a few in the outmost corners. Also, try to use the boxes you have already drawn in the middle as reference.

Edit: Also note that hatching should be ghosted lines.