5:44 AM, Wednesday March 31st 2021
I have a small suggestion with regards to a note you wrote on the second sheet of your "Circles in Ellipses" exercise. I also used to have an issue with my hand snagging the paper when I was working near the edge. Something that worked for me is working on a small stack of sheets. When I get near the edge, I slide the sheets over so that my fingers can slide across the edge more easily without snagging.
Next, the critique. The "Funnels of Ellipses" exercise looks good, but there should be a bit more variation in the degrees of the ellipses. If you look at the example homework (https://drawabox.com/lesson/1/13/example) you'll see that the ellipses are significanly narrower towards the center of the funnel. Another thing, the ellipses are slightly misaligned to the minor axis. It's not too bad, but it's something you should keep in mind when repeating these exercises for future warm-ups.
The plotted perspective looks good, but there's an issue with your rough perspective. Your lines look a bit wobbly in some areas, and it looks like you restate several of your lines to cover over mistakes. All this does is draw attention to your these mistakes. Remember that you should draw your lines with confidence first and foremost. Take your time to plan out the line, and then execute the line with confidence. I understand that at this stage trying to get the right perspective and drawing in the lines is cognitive overload. Just take your time. Treat each step as a separate task. Plan out the perspective as best you can, putting points down where necessary. Then once your perspective is planned out, execute the lines with confidence using the ghosting method.
The "Rotated Boxes" exercise is incomplete. You are missing the 4 boxes in the corners.
Finally, the organic perspective. You've already admitted these are rushed, and it shows. The lines are wobbly, and there isn't very much care taken in how the boxes exist in 3-D space.
Next Steps:
Before you move onto the "250 Box Challenge", I recommend you do one panel (not page) each of the "Rough Perspective" and the "Organic Perspective" exercises. You should also complete the "Rotated Boxes" exercise.