There is a lot of advanced techniques and tools in AI and I am very scared to approach them. They do seem like they are
very useful like the patterns and swatches but I really doubt that I will remember how to use them if I learn now. Though I
find it interesting that even in AI there is a blend mode despite the very internsive toolset that Photoshop has with blending.
As for what I did with my eye, the outer part, the sclera, was made with the shape tool and I made it red. From there I made two more spheres are to make the iris and pupil, with the sclera and iris with complementary colors of red and green. I used a outline to make a eyeball looking effect and used it for the outline of the sclera. And the question mark was there to show the emotion of confusion but also angry with the red colors.