10:19 AM, Saturday May 1st 2021
Hello.
First of all, good job in your lines. They are really smooth and confident and you have prioritized confidence over accuracy. I do not see any your lines.
Your ellipses look good too. You have followed all the instructions and have drawn through your ellipses too .
BTW did you forget to to the ellipses in planes exercise? Or you may have forgotten to upload the picture of it. Its not a big deal , you can just reply me with the picture of the exercise, and I shall check it ASAP ;)
The plotted perspective exercise looks good. I see your first mistake in the rough perspective boxes exercise. You have drawn through the lines to the Vanishing Point. You were not supposed to do that, instead you should have drawn the line (using a scale) above your lines of the boxes to the horizon line (wherever it meets). Here's an example I did for you in MS Paint to make you understand my point.
Other than that, I do not see any mistake in your work. (just a small issue - In the rotated boxes exercise, you have drawn too many boxes. Uncomfortable said that you need to draw only two boxes on each side and corner. Tho I dont think its bad to draw more so I wont say its a mistake)
Thats all I have to say.
Thank you, and good luck in your art career :)
Next Steps:
Please do the ellipses in the planes exercise and reply it in the comments. Then after my comment receives 2 or more agrees, you are ready to move on to the 250 boxes challenge.