Okay, so I'm going to go quickly over it, as I already critqued your work on your discord.

Arrows are pretty good, they flow nicely through the page, only thing is that the gaps between the folds, and the size of the arrow itself could get bigger a bit more exponentially to show better the 3D illusion.

Sausage forms got a few problems, ellipses aren't shifting enough, and there are some forms that don't go quite right in the simple sausage forms we are aiming form. Sausages should consist of 2 balls connected with a tube of consistent width, so there shouldn't be any bulging sausages, or pointy at the end, as it should be a ball.

Textures are pretty good, you are focusing on cast shadows instead of relying on contours, and you are doing a good transition from black to white on the gradients. Dissections wrap nicely around the form of the sausage and you're making a good use of the silhouette to imply the texture.

Form intersections are p good, they have a consistent shallow foreshortening that makes them feel they are on the same scene.

And on organic intersections a few things:

-You got some smaller sausages, so try to avoid them, sausages should be mostly the same size.

-Some of the sausages look like they are about to fall; another thing you should try to avoid, when adding a new sausage, you should think about how it would fall on the underlying forms, and how would be it's ending position after time passes. 

-Shadows are sticking to the forms instead of following the contours of the organic forms underside them. 

-And lastly, some of the sausages, though mostly fixes from the organic forms exercise, aren't quite like the simple sausage forms we should be aiming form, some are a bit too long, and a few of them have pointy ends.