This drawing of 'Golden Eye' by Daria Dzyuba is amazing! He has just used 4 colours (dark yellow, light brown, dark brown and black) and HB mechanical pencil. For the brightness of the eye he has used a rubber and white gouache.
"And by the way, everything in life is writable about if you have the outgoing guts to do it, and the imagination to improvise. The worst enemy to creativity is self-doubt. ~Sylvia Plath 25 Quotes That Will Inspire You To Be A Fearless Writer