His art was so popular in Japan, they gave him an art exhibit show.
This is probably my favorite art he's ever done. It was like a 30 foot high painting of Musashi that was made for the entrance to it.
The mural he drew in the Kinokuniya store in Bryant Park is just breath-taking. I recommend visiting the store in person if you ever get the chance one day. It seems like a lot of people go there just to take photos with the painting .
I do need to buy his art book for Vagabond.