Hi, I'm laura, I'll 'do a critique.

Thinking in 3D

Arrows - The flows of the lines are smooth, getting smaller farther away and bigger closer, with compression on the depth and intesity of the waves, the shading is in the correct places, though the lines used for it often look a bit rushed, make sure to give every line the same amount of attention and to ghost through them.

Organic Forms - The sausages themselves are good, simple, long swoopy lines, with the centerline often being exactly through the center, for the ellipses they are aligned well, change in angle as they leave the center, and touch the sausage/boundaries, as they should. As for the curves, most are a bit shaky(though this will reduce with practice, ghost them a few times before doing them to reduce it), they seem to change in angle as the leave the center, and correctly follow the form they're on, good job.

Texture and Detail

Texture Analysis - The paper has a lot of shadow shapes, though a fair bit of lines too, with this exercise you intend to mostly mfill in the cast shadows you see, they can get thin to the point of having to utilize lines for them, but utilizing lines can get you to fall back into outlining objects, so try to prioritize making shadows shapes until you're more comfortable(okay, less uncomfortable) with texture, otherwise the ice cream looks good, and what I assume is hair or fur too, though the lines in the hair makes it feel a bit more explicit(shadow shapes!), but you're onto the right track, and overall understood what you're supposed to do.

Dissections - The first page shows shows a good variety of textures that wrap with deep light variances, which are excellent for learning, the more of a range you can capture the better, as well as a lot of sillhouette breakage, the second page expands on that and hase some really contrasting ones, with a lot of thicker and more defined shadow shapes.

Construction

Form Intersections - first as an overview, all your forms look good, with consistent convergence and size, and the intersections on them too. On the boxes-only one, a few boxes have diverging lines, make sure to pay more attention to how you construct your boxes. There are also a few instances of repeated lines, make sure to ghost more and let the lines that go poorly be, hiding them under another line is a lost learning opportunity. Likewise the hatching lines on the faces can be a bit wobbly at times, ghosting them can help with that.

Organic Intersections - confident simple forms with maybe 2 complex ones, contour lines that define the forms, the shadows follow the forms under them, and all supported by forms under them, good job on that. All I can really add is to try to think of the sausages as more of a bunch of long water balloons, as some don't have much of a feeling of weight and how it affects them and their neighbours.

Summary

Well understood the concepts and executed them very well, remember to apply the tips mentioned in your warmups, you're good to go to the next Lesson.

Also,it looks like you were drawing on both sides of the paper, it makes it harder to critique your work and can be detrimental to you as the visual noise can confuse you, please work only on one side of the paper for any subsequent submissions.