Did some digitally because my paper finished, anyway I really enjoy this challenge and drawing boxes in perspective have being a lot easier for me now. Ellipses makes you draw accurate boxes in perspective. Moving to lesson 6 and I think imma try to do the 25 texture challenge alongside.
Congrats on completing the cylinder challenge! I'll jump right into the critique.
Starting with the cylinders around arbitrary minor axes, I think you've definitely shown a good deal of progress across this set. Earlier on, I could see that you were struggling with your ellipses - you tended to hesitate as you executed them, worrying more about keeping them accurate than maintaining a confident execution and a smooth, even shape. This resulted in ellipses that were wobblier and less consistent, which in turn undermined the solidity of the form. Over the course of the set however, you kept working at it, and seemed to ease yourself into a more confident execution and greater use of the ghosting method, which gradually did the trick. I'd say this is an issue you managed to largely address in the first two thirds of this section, so congrats on that!
One thing you should be careful of is when you check for errors you should be aligning to the minor axis. In some you ended up checking the wrong direction like in 15. You also ended up not checking about 1/3rd of your cylinders which defeats the purpose of the whole exercise. You also end up over estimating where the minor axis actually is like in 13, 18, 21 etc.
Due to the large amount of missed / incorrect checks I'll be asking for a revision of 15 cylinders, all properly checked.
Continuing onto your cylinders in boxes, overall you've done pretty decently here, although there are some points to pay closer attention to. This exercise is really all about helping develop students' understanding of how to construct boxes which feature two opposite faces which are proportionally square, regardless of how the form is oriented in space. We do this not by memorizing every possible configuration, but rather by continuing to develop your subconscious understanding of space through repetition, and through analysis (by way of the line extensions).
Where the box challenge's line extensions helped to develop a stronger sense of how to achieve more consistent convergences in our lines, here we add three more lines for each ellipse: the minor axis, and the two contact point lines. In checking how far off these are from converging towards the box's own vanishing points, we can see how far off we were from having the ellipse represent a circle in 3D space, and in turn how far off we were from having the plane that encloses it from representing a square.
In being as fastidious as you have been in applying the line extensions as instructed, I can see that you've been giving yourself ample opportunity to assess where your approach could be adjusted to bring those convergences together from one page to the next. As a result, your awareness of those proportions has improved.
Overall your boxed cylinders turned out pretty well, and if you do the revisions for the cylinders around a arbitrary axis you will be well equipped to continue improving at drawing cylinders.
Next Steps:
15 cylinders around a arbitrary axis properly checked.
A lot of my students use these. The last time I used them was when I was in high school, and at the time I felt that they dried out pretty quickly, though I may have simply been mishandling them. As with all pens, make sure you're capping them when they're not in use, and try not to apply too much pressure. You really only need to be touching the page, not mashing your pen into it.
In terms of line weight, the sizes are pretty weird. 08 corresponds to 0.5mm, which is what I recommend for the drawabox lessons, whereas 05 corresponds to 0.45mm, which is pretty close and can also be used.
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