Here is what I call a loose line drawing/sketch, this kind of drawing is drawn as seen by the artist, with as much or little detail as desired. Danny Gregory http://www.dannygregory.com/#_
This artist Stacey Jean has so many lines they are all blended together and adds a lot of detail, they almost look like real objects or photos. http://www.pinterest.com/carimarieg/artist-stacy-jean-aka-1bite2xshy/