Those of you travelled Portugal and passed by a city called Olhão, know the name SEN. Olhão is also called SEN CITY because he painted the whole city more or less by himself, all over the place you can find his impressive and colorful pieces. Along the coastline of the Algarve and in the cities around Olhao to Lisbon. Finally a youtube format titled 2GUI featured SEN in this video including some statements by the portuguese graffiti master.