An unfinished wrting piece - a finished piece of art

Maybe typical wrting fans do not understand if i tell them: "I like unfinished graffitis."
Here a short decription about this phenomena: "Unfinished Pieces are unexepected. Writer's aim is to paint an already finished work, done as a sketch on paper. To move a sketch on a train in my eyes is boring. The action of painting the train is the most important thing. Sneaking into the yard. Being adrenaline flashed. Trying to finish something.
An unfinished work just shows how dangerous it is to paint a train. It's amazing to see how many works still run finished, because the phenomena of painting trains is existing for over 40 years. My thoughts always be: "But next year nobody will be able to paint burner pieces". But it is still possible. But a lot unfinished works run the line, too.And painters upload those works, too.
I'm just wondering why people still want to protect the realness of New York writing, why they don't move a step forward. Painting works on trains that look finished, even if they are unfinshed and the artist has to run."