10:00 PM, Sunday November 7th 2021
First of all you arrows are good, you could have used more lineweight and hatching on the twisting parts, to try to convey more convincingly the sense of 3D.
On your textures I notice that your sausages have swellings on some ends, try to improve that the same goes for the sausages on the contour lines and contour curves exercises.
And now regarding the textures themselves, I can still see the black rectangle on the texture analysis exercises, don't be afraid to fill more space with black ink as it is really lacking.
Now on your dissections, keep foreshortening at a minimal, and bring your forms closer together, remember that the lines that represent where objects intersect run on the surfaces of both objects.
Next Steps:
I'm going to ask for certain revisions as I see some areas of improvement.
The contour lines and curves exercises, some of your sausages swell at the ends, and don't use more contour lines that you need to, a few well placed ones will do just as well.
And the organic forms, this has to do with the shading, it is just as important as the sausages and seems that you forgot it, you have to use it to really reinforce the sense of 3D, don't hesitate to make long shadows and fill places with more ink.