Your lines are nice and straight, good job.

Your ellipses were a little bit out of bounce at first, but you've improved while doing these exercises, so keep focusing on putting your ellipses right inside of the box.

For boxes, you have a room for improvement, but you've understood the "when-it-gets-farer-it-get-smaller" technique, and it's a good point. You'll improve a lot your boxes construction by making the 250 boxes challenge.