Eye Am Closer Than You Think

NOTE: tutorial at the bottom!
So that was my first try with "eye" drawing in detail... (2010).
Page size: 10.5 x 11.5 inches.
That's a big one XD at least for me...
Time taken: 15 hours excluding the breaks etc.
Media: colored pencils+ charcoal pencil.

viewers r requested to suggest improvements please
thank u :)