Hi, MaMind. Good job finishing this lesson.

You superimposed lines are overall good, but in some cases, especially on the longer lines, there is some noticeable wobbling. On your ghosted lines, some are actually arching. Remember to draw all lines in a swift motion using the shoulder.

Your ghosted planes are much better regarding the straightness of your lines, although you seem to have failed to place the dots before drawing the inner lines. Be sure to always plot all your lines with dots, as this gives you a goal to draw them to. If you don't place dots how can you know if your lines are accurate? This will help you check your improvement.

Your ellipses are all very smooth, showing that you've drawn them with confident strokes.

On your rough perspective exercise you managed to keep the depth lines converging nicely, although in some cases you could have better aligned with boxes with the horizon. Remember that the horizontal lines should be parallel to the horizon, while the vertical ones should be perpendicular to it. I noticed that you especially with the vertical lines.

you did well on the rotated boxes exercise, although a few boxes (mainly around the top and bottom right corner) are drawabox.com/lesson/1/16/notrotating. You can check this by verifying that they are roughly sharing the same vanishing point.

Your last exercise, the organic perspective, is very well done, as you managed to keep a good flow form the smaller to the larger boxes. You could, however, have drawn the large boxes even larger, in order to better sell the illusion of depth. The perspective is not the best in some cases, but you will have many opportunities to fix it during the boxes challenge.

One last note: in some occasions, during your rough and organic perspective exercises, you seem to go over the same line more than once. Avoid doing this as it defeats one of the purposes of using ink, which is to plan your lines well. Plot your lines with dots, ghost them and draw with confidence. Not all lines will look good, but embrace the result and, when it's not so good, keep it in mind and do better next time. Don't try to cover your mistakes by drawing over them.

Overall, you did a good job here and should feel free to start the 250 boxes challenge.