El Tono has created some beautiful, simple graffiti in cities around the world:
Our urban interventions are the result of a spontaneous reaction to confront the visual saturation of the urban space. Painting simple forms (a tunning fork and a key) and apparently without any message is a way to face all the posters, advertising and signs that are imposed, almost with the force, to the eye of the pedestrian. In this context, our paintings propose a kind of visual rest, they do not sell or order anything, they only exist in an aesthetic and composition proposal questioning the mass communication. An open door to observation and free interpretation.
For more graffiti sites, see Wooster Collective.