Your lines show that you clearly took the time to adjust your pen before you draw each line. There are some wobbles and arching but it's nothing major since you're at the first lesson. Just do your warm-ups before drawing and eventually your lines will significantly improve. Take note that it's best to work on your lines as soon as possible because it will be important on the 250 box challenge.

As for your ellipses, you were confident enough to minimize wobbles. You may have gone past the planes and didn't touch all four sides, but the main priority is your confidence. Your funnel and table exercise has some tilting minor axes which could use some work as it will be important on lesson 2 where you'll be drawing cylinders. But you clearly did your best to fill out every unoccupied space available. Overall, you did a good job.

On your rough perspective, try to ghost the horizon line and imitate it for your width lines to avoid tilting. Do the same with the other width line and connect the two with height lines that is perpendicular to the horizon line. Now you have a 2d box. Then eyeball the vanishing point as best as you can. It's fine to mess up since the main point is to at least try. I can see that you aren't used to using your shoulder to draw your lines so it ended up arching. Just remember that it is fine for your lines to be off and have the boxes tilted as long as your lines are straight. Tilted boxes are much preferred over arching lines for the viewers. Like I said, you will work on your lines on your warm-ups and what you did is still a good job overall. Your rotated boxes are spaced evenly with each other and all of them are rotated. Although it could use some work, this exercise is pretty much designed to give us a difficult challenge. And finally, add some line weight on the boxes on the organic perspective exercise since you will do it often on the 250 box challenge.