Starting with your form intersections, despite your struggles, these are certainly progressing fairly well. I can see you having some areas of confusion with some of the intersecting forms, but this is still pretty normal. You've gotten the straight intersections down, but when it comes to interactions between rounded surfaces, it's still kind of tricky. I've marked out some corrections here on your first page. I basically noticed two groupings of trouble spots:

  • Spheres/boxes - here you just end up overthinking it, so your intersections are mostly correct but they get more complicated than they need to be.

  • Two rounded objects - this... is totally fair, and is nothing to feel bad about.

Ultimately thinking through intersections is about considering the nature of both surfaces at the same time - you can see that on the page I drew some little arrows to help myself analyze which way the different surfaces were curving. The easy cases are where you've got two flat surfaces - there, you know your intersection is going to be made up of a series of straight lines. When you've got one curved surface and a flat surface, it's usually going to be made up of a simple curve - although if you hit an edge (as we do when you've got a sphere right on a box's corner), we may end up jumping to a different, but equally simple curve.

When you have two curving surfaces intersecting with one another however, things get really complicated - here you often have to figure out how to transition from a curve going one way, then another. I like to think of it kind of like an equation - if you've got two "C" curves, and add them together, you get an "S" curve as a result. Where that S curve goes, and how it's stretched across the surfaces in question, well that's still something you need to think through - but knowing that it's going to be some manner of S curve can definitely help.

Anyway, keep at it, and we'll look at these again when they're assigned as part of Lesson 7.

Continuing onto your object constructions, as a whole you're doing reasonably well. I can see that you're doing a good job of blocking out your objects, starting with solid bounding boxes, and that you're pretty careful and patient when it comes to breaking them down and building up further complexity. Your keurig machine is a good example of this - you keep all those relationships snug, even as you chisen down to finer levels of detail. I'm especially pleased with how you've tackled those rounded corners.

This garbage can similarly goes through the steps well, though it's worth mentioning that you're clearly trying to use line weight here in a way you shouldn't. I totally get it - these drawings can get a little more confusing with all of the different levels of scaffolding and structure, and so you may want to have your drawing stand out from the forest of lines. Unfortunately, that's not what line weight is for, at least not in the context of this course. Line weight serves specifically to help us clarify how different solid forms overlap one another in 3D space. When used correctly, this can to a point help clarify the construction and make the object itself stand out a little more clearly, but you should not be going out of your way to make the "final result" darker, separating your drawing into a sort of "clean-up pass". I actually mention this specifically in the instructions, here where I give permission to use ballpoint. To that point, ballpoint is definitely a worthwhile tool here. I don't simply allow its use to be kind - I feel that it can help students absorb the content of the lesson more effectively by reducing unnecessary difficulty elsewhere.

Now, as we move forwards through your work, I do feel that there are definitely cases where you perhaps leave your constructions off at a much simpler state - for example, this router. There's definitely more going on in its body - little lights, vents, etc. which all do need to be placed in a specific manner, and that's going to require more subdivision and a lot more time and effort. In stopping at this simpler level, you've robbed yourself of additional practice and experience that would have been useful.

As a whole though, you're still doing a pretty good job. I can tell you now that when you get to the end of the course (which is not far off now), Lesson 7 is going to be very demanding. The problems you face there won't inherently be that different from what you've explored here, but they will demand a lot more time. Be ready for that, and be ready to give it the time each drawing requires. I'm saying this now so that you're not unpleasantly surprised - and more importantly, so you're ready to throw down the gauntlet and take on the boss. I know you're capable of it, but while your work here shows understanding and skill, it also shows a bit of timidity and uncertainty - a lack of confidence which will be something that will either hold you back, or that you'll ultimately take command of and overcome.

I'll leave you to it, and mark this lesson as complete.