@Jorge E. Matinez It is interesting to read the background of the great artists. Yoshitoshi ABe started as a graffiti artist, Hiroaki Samura have education in traditional arts and Range Murata is a designer and all this reflect in their works.
Still baffles me how Yoshitoshi ABe (most know as the creator of Serial Experiments Lain/Haibane Henmei) used to draw on the first iPad using his fingers only, no stylus or anything while every other artist seems to be so dependent on specialized devices.