Organic forms are little bit wobble also with the contour curves and contour ellipses

be confidence on those curves and ellipses, don't need to add more line stroke over it . Whether it is looks bad or not one single stroke is enough .All important is that u aware the curves are run along the surface of the sausage-like stuff. It wraps around the sausage.

For contour ellipses just do what you did in lesson 1 , also be confidence . Ghosting first and then draw it confidently with moving only your shoulder and draw 2 times(no more than 2 times or less than).

1 page of each contour ellipses and curves is enough~~ :D

Organis arrow same goes as forms, not enough confidence .Plan it where the line sits in space and draw it fast like real fast and put some line weight at where they overlapping

for texture analysis you cna apply explicit to implict it shows on lesson 2 section u can re-read that part

you can dissect more parts at the dissection section,textures are rounding up the sausage well done but I see there's alot of scribbling are not related you are supposed to be learning that's not good you should be focus on what u are drawing and the point of learning

form intersection looks nicely done and organic's