Hello Marelix2, I'll be handling your lesson 2 critique.

Arrows

You want to be making sure you're drawing confidently to keep your arrows as smooth as possible, accuracy will come with mileage. There are just a couple of spots where you're avoiding having your edges overlap which can make the arrows look flat. There are spots where your arrows bulge/narrow suddenly, this is an issue because it gives the impression that your arrows are stretching which hurts their solidity. Remember that as our arrows move closer to the viewer we want them to widen consistently.

It is good to see that you're experimenting with adding hatching to the bends of your arrows. Keep in mind that you should be adding the hatching to the far side of your bends. Because objects appear smaller as they recede in space, this will be the narrower part of your arrow.

Organic forms

Most of these are sticking to the characteristics of simple sausages that are introduced here. There are a couple with one end slightly larger than the other (we want to keep them the same size) but on the whole these are really good.

Your ellipses are smooth and confident, just remember to draw around the small ellipses on the ends two full times before lifting your pen off the page, even if you feel like you can nail them in a single pass. This is something we ask you to do for every ellipse you freehand in this course, you can read more about this here.

Your contour curves are good, just keep in mind that you only need to draw them once. I think you realised this yourself because you've corrected this in your organic intersections exercise.

Keep in mind that the degree of your contour lines should be shifting wider as we slide along the sausage form, moving farther away from the viewer. This is also influenced by the way in which the sausages themselves turn in space, but farther = wider is a good rule of thumb to follow. If you're unsure as to why that is, review the Lesson 1 ellipses video. You can also see a good example of how to vary your contour curves in this diagram showing the different ways in which our contour lines can change the way in which the sausage is perceived.

Texture Analysis

This came out well. You've made careful observations of your subject matter and are making a good effort at working implicitly by using shadow shapes instead of outlining textural forms. You've got a pretty good transition from dark to light in your gradients too, well done. In future I suggest outlining your shadow shapes, then carefully filling them in as shown here rather than working with single lines.

Dissections

Here some of your textures get more explicit as you're outlining quite a lot of your textural forms. This makes it difficult to create gradients with implied information which we could then use to control the detail density and guide the viewer's eye around more complex art pieces. You're doing a good job of wrapping your textures around the surface of these forms and breaking the silhouette for greater visual impact, well done.

Form Intersections

Your forms are well constructed, with fairly consistent shallow foreshortening, so they feel like they all exist in the same 3D space. It is good that you went to town and really filled up your pages too. Don't worry if you feel like you don't really grasp the intersections themselves just yet, this lesson is just an introduction to them and we'll be revisiting them in later lessons. All you need to do at this stage is attempt them, and you've done that well.

Organic Intersections

These are spot on, you've done well at drawing your forms slumping and sagging over each other with a shared sense of gravity, and they all feel fairly stable and well supported, like we could walk away from the piles and nothing would fall off. This is just what we're looking for, good work. It is also good to see you drawing through your forms in this exercise, as this helps to reinforce your understanding of 3D space. You're projecting your shadows far enough to cast onto the forms below, and their direction is fairly consistent, well done. The note about drawing around your ellipses two full times before lifting your pen applies to the small ellipses on the end of your forms too.

Overall this was a solid submission and I think you should feel free to move on to lesson 3.