These graffiti works are employed the same style, that is, contours. It is interesting to add a contour to the ad, poster, and other people's graffiti, just as I mark the other things with my own mark, showing that the evaluation of things, such as whether it has a high enough level, a higher contour, in the contour line under the state, which are worthy of our thinking, because it is a real problem. Just like every movie released, some sites will mark the score, then why can not we give things around scoring it?

​