Step-by-Step Drawing Faces. This is a good base sketch for the perceptions of self/other process assignment. Bright colours or patterns could then be added to reflect upon the personality of the perso (Drawing Step Learning)
Just Some Amazing Hipster Drawing Ideas (40 Of It)
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.