Marcus aka I love animals Aachen creates very fantastic sticker- and paste up- animals. His artworks are seen on a lot of walls in Aachen, Berlin, USA, Sweden,  Switzerland and the Netherlands. He started with his art work in 2014. Often the animals were stolen but that is no problem for the artist. Then Marcus makes new ones. 
A big Narwal - paste up you can find on this wall. He looks great.