Yes! I didn't even know about the timer :) Thanks for pointing that one out!

True

Putting into words what is off about some of the boxes would probably take quite a big wall of text since it would require explaining perspective again. I do not have the time to do a drawover, so I will try to make it brief. Numer 9-0 and maybe 3.0 look pretty good to me, but almost all other boxes ignore some rules of perspective. This lack of understanding how perspective works and how one of the boxes would have to be drawn in relation to the other, makes it feel like they are not connected properly in many cases. In general i would argue that you have some trouble with making the lines of your boxes converge "correctly" and understanding "3d" space (or rather the illusion of 3d space on a 2d piece of paper). Practicing this with distorted and twisted boxes is making things needlessly more difficult. In other words: You are focusing on landmarks and muscles before having understood perspective enough. Given that you still struggle with perspective you make focussing on landmakrs and anatomy even more difficult. Most of the boxes are also hardly rotated (mostly front facing with some rotation but no bending of 90° or anything) This further makes me feel like you need to work on understanding boxes in perspective more before tackling body shapes. Given that understanding boxes in perspective intuitively is pretty essential, I would recommend to try the 250 Box challenge over on https://drawabox.com/lesson/250boxes . It is pretty boring but it helped me doing boxes intuitively a lot. (read and follow the instructions though, especially the part about checking the convergence of your boxes after every page. If you first draw all the boxes and then check them, you learn a lot less than if you draw five boxes on one piece of paper, check and then implement what you learned on the next page) some words on particular boxes: 1.0 - the lower edge of the top box aligns with the upper back edge of the lower box. Therefor it looks like it is further back. The boxes would have to overlap to be correct. You have improved that in 1.1. 2.0 - The left and right side of the lower box are visible simultaneously, which would only be the case if the box got wider towards the back. In other words, the edges do not converge properly. 12.0 - The edges of the bottom box moving "away" from the viewer are parallel. No real convergence to one point. 15.9 - The top box has all of the edges going "away" from the viewer are also parallel. No real convergence, just some distortion. Whelp… turned into a wall of text anyways. I hope it wasn't too harsh and you can get something out of it. Keep it up.

I believe the idea behind this exercise was simplification. Simplify shapes and shadow. By only using straight lines and four shades of grey + white, you are supposed to leave out a lot of unnecessary detail and focus on shape design. (also it was meant to be a simple shape so beginners could have a little success moment at the beginning of the course i guess) So yeah, more like the first and second pear. The third one is blending everything already again. Stan explains it pretty well in his own demo of the pear though, so maybe take a look at that as well?