http://www.sheridoty.com/colorpencil.phtml
Artist: Jan Henderson
Artist: Kimberly Jansen
http://www.mooresartgallery.com/artlinks8.html
Technique: Cross Hatching
http://lovely-blood-rose.deviantart.com/art/Cross-hatching-BB-144815159
Technique: Continuous Tone
http://ricophotography.blogspot.com/