Hi Milan I'll be handling the critique for your lesson 2.

-Starting with the arrows section you are doing a greta job of drawing confident, smooth lines and capturing the fluidity with which they move through space, I do have one thing to call out and that is your use of lineweight, keep in mind that you only want to use it very subtly, by adding only one extra superimposed line.Secondly, it helps a fair bit to focus your use of line weight on a specific task. Within the context of this course (given our limitations in the tools we're using here), it's generally most effective to focus the use of line weight on clarifying how different forms overlap one another. Take a loom at this that exemplifies it.

-Moving on to the organic forms, you are drawing your sausages well for the most part, there are some that show some pinching, keep in mind that we want to avoid any overstretched, unequal sized sausages as shown here.

Regarding the contour ellipses keep practicing the alignment to the axis and keeping them even, I see that you have drawn your contour curves more than one time, you only have to add one contour line, don't overuse this resource as it can easily undermine your drawings.

-Continuing on to the texture analysis, I see that you are focusing on the bigger cast shadows and you anly add little dots for the little ones, make sure that you are always working with shapes.

-In the texture exercises you're focusing largely on outlines and negative space rather than cast shadows created by forms along the texture itself. This makes it difficult to create gradients with implied information which we could then use to create focal points in more complex pieces, by doing so we can prevent our viewers from being visually overwhelmed with too much detail. For more on the importance of focusing on cast shadows read here. I'd also like to quickly direct you to this image which shows that when we're working with thin line like textures if we outline and fill the shadow we will create a much more dynamic texture than simply drawing lines.

-Moving on to the form intersections, this exercise is just meant to get students to start thinking about how their forms relate to one another in 3D space, and how to define those relationships on the page. We'll be going over them more in the upcoming lessons. Your forms are looking quite solid here and they believably appear to belong in the same cohesive 3D space, good work but definitely experiment with intersections more (you didn't attempt to draw that many of them).

-And finishing this critique with the organic intersections your forms begin to wrap around each other believably, and you seem to have a consistent light source.