crayon-sketched head silhouette

art black blue brain classic clipart computergraphic computericon concept concepts conceptualsymbol conclusion contourdrawing copy crayon crayondrawing design designelement drawing head humanface humanhead idea imitation insignia isolated isolatedonwhite mind nobody noone oneperson pencildrawing people problem profile representing semiotic silhouette simplicity singleobject singleperson sketch space sparse symbol synonym white whitebackground