Hello, I will be critiquing your homework!

Lines

Your lines increase in confidence as you continue your exercises, well done! As you mentioned you repeat your lines in some of your exercises, you should avoid this. Commit to a single line and move on as if it was correct. You will get better with practice!

Ellipses

Your ellipses look very good! There is little overlap and they are drawn in confidence.

Boxes

Well done on your box exercises, it seems you understand to concepts of the lessons. Some of your boxes in the organic perspective exercise appear to be squished. This can happen when one of the angles of the corner that is closest to the viewer is less than 90 degrees, it gives a very exaggerated perspective. If this is confusing, do not worry, you will get more practice as you draw more boxes and I think you will understand what I mean :)

Very good job on completing your lesson one homework, it's a huge accomplishment!