Nice, solid construction here! However, I don't know if one really needs these circles at the first step. They reflect some of the geometry behind these facial features, but it's not defining. (except the eye, of course). I am, myself, not a pro, but from the books I saw, they seem to start with large volume blocks or boxes, not flat circles. (except for the eye, again) In case of this tutorial that would be step 2. Anyway, that was useful, thanks!