Starting with your form intersections, overall you're doing well, but there are a few areas where you're making mistakes that arise from not necessarily thinking about the individual surfaces that are involved in each intersection. I've marked out a couple that I saw here. The one between the cylinder and sphere wasn't a big problem - it's definitely the more challenging kind of intersection to navigate. For the cone/box to the right however, I initially thought this was a simple matter of not realizing that the bottom plane of the cone is flat, and thus that intersection would behave just as though it was an intersection between two boxes, yielding a straight line. Looking at it now, the other possibility is that you may have gotten confused as to the orientation of the cylinder, and thought you were intersecting with the curved surface. This would not be possible however, as the intersection towards the tip of that cone (with the other cone above it) suggests that the tip is pointing away from us.

Continuing onto your cylinders in boxes, your work here is looking very solid. You're applying the line extensions thoroughly and correctly, so you're well armed to continue making effective use of this exercise in the future.

Moving onto the vehicle constructions - both the form intersection ones and the more detailed ones - you've undoubtedly knocked this out of the park. I actually used your work earlier today as examples for a couple of other students who were struggling to really push the use of their orthographic plans and subdivisions as far as they could. While they certainly had the same capacity as you skill-wise, what you've demonstrated here is precisely how much our skills work together with other aspects - specifically our patience. Like everything else, patience develops as we practice, especially if we continually push ourselves to our limits, but what you've demonstrated here is exemplary.

I'm absolutely thrilled to see how thoroughly you've made use of the subdivisions and orthographic plans, pinpointing every landmark - from major ones to minor ones - so that no choices had to be made while building up the object in three dimensions. Everything necessary had already been determined, leaving you to simply build it back up. The only unfortunate side to all this is that I really don't have much else to offer you in terms of critique. You've done a phenomenal job, and what you've demonstrated here is beyond what I am capable of improving upon. Those are of course my limitations, not yours - I expect that as you continue forwards and explore other courses and resources, you will continue to improve and develop with leaps and bounds, and I'm excited to see what you'll produce.

While your time going through this course is over, I do hope you'll continue leveraging the exercises you've learned here to continue keeping your skills sharp. I also hope you'll join us over on our Discord chat server. Those who've achieved completionist status receive permanent access to our patreon-restricted channels, as well as access to the "#completionist-club", where we encourage those who've gone through the whole course to share what they're working on. Of course, that's entirely optional, and above all else to the benefit of the community, rather than to you.

So! With that, I'll go ahead and mark this lesson, and the course as a whole, as complete. Congratulations!