Unfortunately, I think in working through this challenge, you may not have given yourself as much time both in reading through the instructions, and in applying them to your work. As a result, there are some significant issues in how you've completed the work. Given that you submitted exactly 14 days after you were cleared to continue forwards from Lesson 5, that does strongly suggest that you may have prioritized getting the work done quickly.

Starting with your cylinders around arbitrary minor axes, the main issue here is through the first half of the challenge, you drew cylinders with virtually no convergence to those side edges - effectively forcing their vanishing points to infinity, and eliminating the foreshortening altogether. There are two reasons this is a problem:

• Firstly, the assignment section explains in bold (as pictured here) that we specifically want students to provide us with a lot of variation in the rate of foreshortening. You did ultimately go on to do this more correctly in the second half of the challenge, but this is definitely something you missed throughout the first.

• Secondly, we do not actually control where our vanishing points are meant to go. We get to decide how we want a given set of edges to be oriented in 3D space, and it's that orientation that determines where the vanishing point for the lines representing it will fall. When it comes to "infinite" vanishing points that make our lines parallel on the page, this only happens for very specific orientations, and will only occur when the set of edges in question run perpendicularly to the viewer's angle of sight. In other words, when they run straight across our field of view, not slanting towards or away from the viewer through the depth of the scene. Since our cylinders here are rotated completely randomly, that's unlikely to ever happen, so it's best to have some convergence - even if only very slightly - to our side edges when constructing these cylinders.

Continuing onto your cylinders in boxes, unfortunately you have a significant omission here as well. In this section, the specific approach for extending the lines can admittedly be a little confusing, as there's a lot to it. We devote a good bit of time to explaining all of its elements in the video for this challenge, as well as in the written material here.

When working through this part of the challenge, it appears that you extended the lines for each box (which is correct), and the side edges of the cylinder (not strictly required, but not a bad thing to add, and certainly not a mistake). I'm unsure of whether you extended the minor axis lines for your ellipses (you may have, but if you did, you may have really just marked it out more similary to the first part of the challenge - here we want to extend them all the way back with the box's lines.

More importantly however, what you left out entirely was the extension of the "contact point" lines, of which each ellipse has 2. Between the contact point lines and the minor axis, every ellipse should have three distinct lines to be extended back in space. In combination with the boxes' line extensions, this gives us ample opportunity to gauge how these lines are converging, and where our approach can be adjusted to bring it more in line in subsequent pages.

Unfortunately while you certainly did work hard at the challenge itself, you missed important instructions. As a result, the analysis step (which is extremely important, as it helps us assess our work and adjust our approach to yield greater growth/improvement over the set) was not providing you the information you required.

The initial problem (the lack of foreshortening for the first half of the cylinders around arbitrary minor axes) wasn't great, but I was on the fence about whether it would merit revisions (since the second half was done correctly). In combination with this significant misstep on the cylinders in boxes, and the fact that you rushed to get the work done in a mere 2 weeks (or less, since that's the minimum wait before you're allowed to submit your work), really lines up to suggest that you didn't uphold your responsibilities as a student of this course.

That last sentence sounds pretty harsh - and it's certainly not a good thing - but I do want to assure you that it's not abnormal, or shameful. Students do it every now and then. They take a wrong turn, they're perhaps over eager to get to the next stage, and their enthusiasm may cause them to make some bad decisions. It happens.

It is however an important opportunity for learning from this mistake - and the only way to do that is to have it sting. So, I will be asking you to redo this challenge in full. Additionally, I strongly encourage you to rewatch this video from Lesson 0, which explains in-depth what the student's responsibilities are, and why exactly it's important not to set any kind of external deadlines, and only to focus on giving yourself as much time as you need both to absorb and understand the instructions (and to revisit them as needed to ensure you aren't missing anything), and to execute the work to the best of your current ability.

For what it's worth, if we set aside the core goals of this challenge, and look only at the results you've drawn in isolation, I think you're doing great. Your lines are straight and confident, and your ellipses are evenly shaped. All that really went wrong was that you followed an incorrect understanding of the instructions, and never took the opportunity to check whether that was correct.