Hokusai is pretty much the godfather of the modern comic and manga style. He is the one artist to turn to for beautiful composition, for great linework and gesture. He died in 1849, and left behind a gigantic body of work. Much of it can be found on the internet, although the reproductions are generally of a pretty poor quality.
A link to many good reproductions, i don't know how they'd feel about hotlinking though
When i see this one it triggers NES music in my head.