Hey, Nulelu, good job on this lesson.

Your lines are generally good. There's some arching on your superimposed ones and some of your ghosted ones are slightly wobbly, but not bad at all.

Your ellipses are very good. Its shows you've drawn them with confidence, as they are very smooth. Although you're correctly drawing through them, in some cases you are going over too many times. Draw each one two or three times at most. Also, although optional, on the funnels exercises you could have made the ellipses near the center narrower.

Your rough perspective boxes are overall good, aligned with the horizon line and with a good perspective, although your line work could be better here. I suspect you slowed down your drawing speed in order to make sure the lines would all reach their destination, but you must remember that for now it's much more important to focus on getting smooth lines, as accuracy will later naturally come.

On the rotated boxes exercise, some are rotating, but many aren't, as they share the same vanishing point.

Your last exercise, the organic perspective, has some interesting compositions, but you could have exaggerated the difference between the smaller and larger boxes. You could also have overlapped some boxes, while increasing the line weight of the front boxes, in order to highlight that they are in the front.

Overall a good submission. Keep up the good work.