Starting with your arrows, you've done a pretty good job of getting them to flow fluidly through the three dimensions of space. One thing I am noticing however is that you do seem to be somewhat hesitant to allow the zigzagging sections to overlap as the spacing between then shrinks more and more. Remember that perspective will ultimately cause that spacing to become negligible, and you'll have to be willing to let them overlap in order to properly demonstrate the depth in the scene.

Moving onto your organic forms with contour lines, these are quite well done. Your ellipses are smooth and evenly shaped, you're clearly aware of the shift in degree across the length of the sausage forms, and you've done a pretty good job of sticking to simple sausages. You're not 100% there on that last point, in that the width isn't entirely consistent across the length of the sausage form, but you're pretty close.

Very nice work on your texture analyses. You've done a great job of focusing on how to employ shadows rather than lines, and have demonstrated an excellent focus and attention to your reference image, along with strong control over the density of your texture to achieve a smooth shift from dense to sparse.

This continues on into your dissections, and you've tackled each texture on a case-by-case basis, rather than trying to apply a one-size-fits-all solution across the board.

Moving onto your form intersections, the main focus here is whether or not the student is able to draw these forms together within the same space such that they feel consistent and cohesive. To that end, you've done an excellent job. The actual intersections themselves are something I merely wish to introduce students to, as it is as a concept - that of spatial reasoning and the relationships between forms in space - at the very core of Drawabox and something we will continue to develop throughout the entirety of this course. While that is the case, you've got an excellent start. There's plenty of room for growth and improvement, and many of your intersections have issues, but they hold in them a grain of understanding where you've often gone in the right direction. Rather than dwelling on them now, we'll be leaving them to continue to develop alongside the grasp of 3D space as a whole that you'll be nurturing through the various constructional lessons moving forward.

Lastly, your organic intersections are quite well done. You've done a great job of capturing how the forms slump and sag against one another, giving the impression that they exist together within 3D space, rather than as shapes pasted on top of one another on a flat page.

All in all, you've done very well. I'll go ahead and mark this lesson as complete.