Starting with your form intersections, your work here is definitely demonstrating a solid understanding of the relationships between the different forms at play as they exist in 3D space. I did notice a slight tendency not to fully draw through some of your ellipses, but this is a fairly minor issue - just be sure to pay a touch more attention to whether or not you're doing two full turns of the ellipse. Your cylinders in boxes are similarly well done, and I'm pleased to see that you're still applying the line extensions effectively, so as to properly analyze the results and derive what adjustments to make for the next page's worth of the exercise.

Continuing onto the meat of the lesson, overall you've done very well, with the main issue being in how you leverage your orthographic studies. While your results are by and large quite solid and convey a well developing understanding of 3D space, you aren't really leveraging the orthographic studies as well as you could.

This is a particularly tricky area, given that it's one of the more recent points we've added material on, and it's something that isn't reflected as consistently in many of the demo content, as it's a fair bit older. That's something we are looking to address through our overhaul, but that takes time. In the interim, we're addressing this issue both by adding to the written content of the lesson material, and by sharing this information in the feedback our official-critique students receive.

For example, this section from Lesson 7 (which itself references back to this section in Lesson 6 where it is more completely demonstrated), stresses the importance of leveraging those orthographic plans, and that the approach shown in the demonstrations is not as complete as it could be. Now, I do know that this is something you were aware of, as I noted in the critique of your Lesson 6 material the excellent use of these kinds of orthographic plans. Thus, to have them absent here is quite unfortunate.

I won't stress the issue too much though - the actual vehicle constructions still show a level of care and fastidiousness that clearly shows you didn't rush the work. I would however really stress that you go back over that orthographic plan material for yourself, so you refresh your memory on how to leverage this aspect of the exercises to its greatest effect when practicing this kind of material again in the future.

To be clear, your work is excellent, and you're clearly demonstrating a solid grasp of the skills we intend to train and improve upon here throughout this course. What this does suggest however is that while you may well have taken great care in doing the work, you may not have taken as much care in reading through the material - so that's something to keep in mind when moving onto other courses, that you may be prone to missing things, and that you may need to allocate more time to go through those instructions to ensure you're getting all you can out of your time investment.

The only other thing I wanted to call out is a fairly minor point - but when you're using filled areas of solid black in the work you do for this course, or when you practice its exercises in the future, reserve your filled areas of solid black for cast shadows only. Avoid filling existing surfaces in with black, as we see in the gaps of this tank's treads, in this motor bike, and in the wheel wells of your cars. One area where it is okay is with the interiors of your vehicles, as it helps to create a distinction between the exterior/interior, and we can get away with it by loosely arguing that the exterior structure is casting shadows upon the entirety of the interior surfaces (although this isn't technically correct, since light should still be able to pass through the windows/windshield - but it's good enough for our purposes here). Anything else though, when we're filling in an existing shape in the construction instead of introducing an entirely new shadow (whose actual shape would, through how it's designed, convey the relationship between the form casting it and t he surface receiving it) falls more into the category of form shading, which as mentioned here in Lesson 2 is best left out of our drawings for this course.

Aside from that, you're knocking it out of the park. As such, I'll go ahead and mark this lesson, and the course as a whole with it, as complete. Congratulations!