Congrats on finishing lesson 7! I'll do my best to give you feedback so you can improve.

Starting with your form intersections there are a few issues I'd like to address. The first being unconfident linework. Generally by the time students reach lesson 7 they should have built up enough mileage with the ghosting method and markmaking from warmups. I can only guess that you've neglected doing warmups so I strongly suggest that you continue to do them after you finish the course. Moving on to the intersections themselves, I can see that you do a good job for flat-on-flat intersections but problems start to appear on the round-on-flat and round-on-round intersections. Remember that instead of thinking of the intersections between forms, think of them as between surfaces. Usually for round-on-flat curves there will be a "C" shape between the 2 like your cylinder going through the box. For round-on-round, it's usually an "S" curve between the forms. From what I can see you still end up using C curves which makes the objects look flat. I'll be asking for a revision of this exercise with cleaner line work and more intersections between round-on-round/flat surfaces just to make sure you have a good understanding before finishing the course. I'll give you this diagram which may help your understanding as well as this form intersection pack (made by optimus on discord) and this guide on how to use paint 3D to make your own intersections and to experiment with different configurations.

Your boxed cylinders are looking good so keep it up. The reason uncomfortable asks for this exercise again at the end of the course is to see if students are doing it correctly so when doing warmups they can still get value out of the exercise.

Finally for your vehicle constructions you've done a really good job with these! I can see you've patiently and carefully built up the constructions. I only have a couple points to make.

First it seems like you've only blocked out the general shape of the vehicle on the orthographic plans and did the subdivision on the construction itself. While this isn't wrong, it can be more beneficial to do all the subdivision on the orthographic plans before doing it on the construction. Doing it this way allows us to separate the decision making process and the thinking in 3d process allowing us to focus on one task at each step instead of multiple on one step. Uncomfortable has updated the orthographic plan instructions from lesson 6 and 7 in case you missed it. The one on lesson 6 has an example which illustrates how orthographic plans can be used to precisely define specific landmarks on an object however that can also be transfered to vehicle plans as well.

Second, you've opted for a grid like approach in the subdivision which is ok, however you didn't replicate this grid onto the constructions (from what I can see) which essentially makes them useless as you can't transfer information from the plan to the construction. Luckily this is made up for by the fact you did subdivision on the constructions but it's still important to make the plan match the construction. On the topic of plans I'd also suggest that you base the plan off the wheel measurement as that is much more accurate than a grid (on cars atleast). This may not be possible in your case as from what I can see you don't have an ellipse / circle template but if you end up doing these exercises again I suggest getting one.

Third, the 7th vehicle down (the truck) ends up looking flat because you didn't extend the top points to the other vanishing point which you may have missed. This is why separating the 3d thinking process is essential as you are less likely to get distracted and miss small mistakes like that. Also on that same vehicle (and a couple of others) you end up using form shading which is something that this course avoids. This is the difference between cast shadows and form shading which shows how cast shadows suggest form and form shading describes the form. I assume you were doing this with the line hatching as well which is also something to be avoided in this course as it's another form of form shading.

Finally I suggest taking a look at this submission as this is what I consider as a perfect example for the exercises. In sharing this, I don't want you to compare your work to theirs as that would be missing the point. I share this so you can get a different perspective on how to approach these exercises.

Overall though you've done a great job with this lesson, with a few minor tweaks to your approach I feel like you can get more out of the exercises if you choose to do them again. If you have any questions or if anything was unclear don't hesitate to ask.