Hi!

Here is my critique.

1. Ghosted plane and ellipse in planes looks fine. Since you are showing four differente pages of this it is clear that you grinded and that is not recommended. The instruction was to draw ellipse inside the plane you already drawn.

2. In rotating boxes there some boxes that are not really rotating.

   https://drawabox.com/lesson/1/16/notrotating

3. Don't worry too much about the difficulties in organic perspective, since you will be drawing boxes for a while.

4. In the superimposed lines sometimes there is fraying in both ends. This is due for lack of attention when practicing the lines.

Great work!!!