Unpredictable Gallery Streetart

how important are the instituional spaces in the contemporary art?
This is an invitation to questioning if the walls and reputation of an art space makes "good " or "bad" art.
I use plastic boxes to create small gallery spaces or small pieces of a gallery splitted around the city. There are 100 different works using a mix of digital printing and water color. The total number of pieces printed and sticked around Berlin is 500. Down below a sample of the works in the city. In the back of every piece there is a 10 digit code, this is an authenticity code that can be verified in the website.