Nicely done! Despite the emotional turmoil, you have largely done a pretty good job with this challenge.

Starting with the cylinders around arbitrary minor axes, I'm very pleased to see that you drew cylinders of many different lengths and rates of foreshortening. For the most part, you do appear to be demonstrating a good grasp of how the scale shift and degree shift from one end to the other work in tandem. There were a couple instances where you'd have the degree stay roughly the same, while the scale of the far end shrunk by a fair margin (for example, 67, 90, etc) but most of yours had the far end getting comparatively wider, as it also got smaller in overall scale.

Just as a reminder, this is because both shifts are representations of foreshortening, so of course as the foreshortening increases, both will change in equal measure.

You're also doing a good job of checking your ellipse alignments, and I can see these falling more in line with one another as you progress through the set. There were definitely more significant margins of error towards the beginning, and while there were still inaccuracies and mistakes towards the end of this section, they were fewer and farther between.

Moving onto the cylinders in boxes, I'm honestly having trouble seeing what hesitation you were referring to. While there's some minor distortion to some of the ellipses, their confident execution improves considerably throughout the set. There are a couple wobbly outliers, but overall they're entirely in line with what I'd expect.

On top of this, you're doing a great job of checking your line extensions appropriately, and as such you're gradually improving your instincts towards constructing boxes that feature two square faces on opposite sides of the form. This is achieved by using the ellipses themselves as an additional error-checking tool, alongside the basic line extensions. After all, if the ellipse's minor axes and contact-point-lines converge towards the box's own vanishing points, then it tells us that the ellipses represent circles in 3D space, and therefore the planes that enclose them also represent squares in 3D space.

I can see those line extensions becoming more consistent as you progress through the set, leading to more roughly correct proportions for the boxes. I expect this improvement of your instincts will come in handy as you get into the more geometric constructions of lessons 6 and 7.

I'll go ahead and mark this challenge as complete. Keep up the good work!