If you think your eyes are deceiving you -- they probably are. Artist Kelvin Okafor's portraits are not monochrome photographs but intricate drawings etched using the humble pencil.
원문출처 : http://www.cnn.com/2016/11/07/arts/photo-realistic-portraits-kelvin-okafor/index.html
원문출처 : http://www.cnn.com/2016/11/07/arts/photo-realistic-portraits-kelvin-okafor/index.html