Take your 2b mechanical pencil and lightly draw the outline of the shape outside of the pupil. Draw the shape not by outlining it but by using lines that run around the shape. It will be the same shape as the pupil except that it will be a bit wider. Outside of this shape you will draw the light lines that will go out from the center of the out, starting from the outside of that new shape. These lines will be a guideline for the highlights and shadows that we will be adding later on. It should look like the image above once you are done doing this step.
Taking your color blender, blend in those lines that you added on the step above. Blend from the center out by pulling the graphite towards the edge of iris. Take you progresso pencil and in a continuous ‘w’ motion outline the shape that is outside the pupil, don’t press to hard. Do this only on the right side, this will be a light source shadow showing that the light is on the left side.
Take your color blender and blend the outline that you made on the previous step. You will pull from the inside out. This will give you a shadow that will show over the lighter area. Now on the left side, since this part will be the darkest because of shadow, add some darker lines using your mechanical pencil. Make them random but not too dark, it should get dark not from how hard you press but from the amount of lines that you add. One you have done this, take your color blender and lightly blend the lines, pulling from the center out. It should look a bit like the image above.
I hope this tutorial was helpful in improving your artwork. If it was, be sure to show support by sharing it with social media below. It would be greatly appreciated! Thank you for the amazing response!!