Hey there. I'll be going over your lesson 6 work so let's get right to it.

Off the jump, I'm seeing you show a solid grasp of how forms behave in space in relation to other forms. For the most part your intersections are clean and well-informed (not to mention your excellent draftsmanship).

I am just going to point out a few places where we could improve on. When it comes to form intersections, I like to think about the "principle contours" that describe a surface. The simplest one, funny enough, is the sphere. It is simple because no matter the orientation or the path you take around a sphere, you are on an ellipse. So let's take this intersection and look closer at it. The principle contour of the sphere is an ellipse. I determined its degree by trying to imagine the degree of the ellipse that would fit into the top plane of the box, to keep the perspective in order. From here, the actual intersection is pretty straight forward.

The same principle applies to this cylinder cone intersection, but a little more complex. The principle contour of the curved surface of the cylinder (and cone) are also ellipses, but they can be oriented a with a little more complexity as I show here. So what we must do is take liberties and design our world. I went with a basic ellipse and left it faint so you can see the subtle difference from yours. Additionally, we must take into account the curve of the cone which causes a subtle transition at the beginning/top of the intersection.

You're on a great start though, and as you move onto lesson 7 where you will get more applied experience with these compound curves, your sense of it all will only get better!

I like the care you took with your orthographic study of the tape dispenser. The only thing I want to point out is your ellipses for the tape itself are not aligned with their minor axis all the way. Ellipses in space are hard! If it helps, you can build a bounding box around where the cylinder will exist, like you do in the 250 cylinder challenge.

Pretty much the same things go for the pencil sharpener. I drew out what I mean, and to show some minor adjustments to align things. When it comes to these lesson 6 objects I like to start trying to get students to think about intent. With dramatic 3 point perspective, it's usually to show well...drama, or scale. There's nothing technically wrong with drawing a sharpener in such a view, but it can over complicate things and give a feeling that something is just off about it. Especially since these objects don't have much discernible convergence at their scale.

Nice job with the mini arcade cabinet! You did a good job aligning your ellipses for the buttons to their minor axes. Just remember that a sphere in any perspective will always be a circle and you can add a contour line to convey form. (This is for the central joy stick)

Great job on the mouse. You did a lovely job analyzing the forms in orthographic views and applying the techniques in the demo to show a proper understanding of the methods. Your line weight looks a bit scratchy where you were trying to reinforce so keep that in mind to try and be deliberate and methodical when applying more weight. Using the ghosting method and your arm, etc.

Great job on the germ-x bottle too! I want to point out when "closing a silhouette" of an object, you should go to the outermost point, as shown here. The way you had it would imply we see none of the side, which obviously is only true in a straight-on view. I also like to sometimes add these contours (in purple) along the front and side of an object when it's a large, somewhat plain, form to help reinforce to the viewer how it looks.

I think the candlestick and holder was a great choice for a final object to push yourself. Because you're doing a great job, I have to find things to nitpick. For these cast shadows, try and stick with solid tone (I used seafoam just so you could see easier).

Overall, you've done a fantastic job and I'm marking your lesson as complete. Keep up the good work and good luck on the 25 wheels.