Hello!

Great job on completing your lesson.

First of all, your lines look pretty clean and stable, you are doing a great job on that part.

Now, let me move on to the corrections:

Arrows:

It's good that you've varied with the line orientations.

And I see that you've made the spacing between them decrease as they move away from each other, very fitting.

All good here.

Organic shapes:

The overall shape is great.

Regarding the contour curves and ellipses:

They all look good in the sense that they align to their minor axis.

But I notice that they don't change the degrees (widening/narrowing) of these much.

Of course this is inappropriate, the change of degree in the ellipses reinforces the three-dimensional illusion.

I'll leave you an example of what you are doing:

https://d15v304a6xpq4b.cloudfront.net/lesson_images/6822fd02.jpg

And a diagram of what you should try to do:

https://imgur.com/rXLBxSg

Texture analysis:

Quite correct that you are focusing on the shadows and not the shapes in your textures.

The shadows and their details are well planned and drawn.

Regarding transitions.

They look adequate, however you could try to get a longer and smoother transition. Covering larger areas at the beginning of the shadow.

Example (lower part of the leaf):

https://d15v304a6xpq4b.cloudfront.net/lesson_images/7d1f3467.jpg

Dissections:

They look too good.

Perfect that you are also playing with the silhouette of each shape, this helps to give a three dimensional impression.

The transitions from shadow to light look a bit more correct here.

Shape Intersection:

The amount of shapes is just right.

I see you tried with the intersections and they look solid which is good.

They have the right length and foreshortening to make all the objects look in the same scene. Good job on all of this.

Organic intersections:

What I mentioned earlier about the degree of ellipses applies here as well.

To be corrected later.

The shadows stick to the object they are cast on properly and you feel a solidity and support in each sausage.

This is all good.

I will leave you no rectification homework since you have a general understanding of the lesson.

But try to improve the degree change in your ellipses on your warm-ups.

And the transitions of the textures in the next ones you have to draw!