Big piece of street art (5)
I believe the answer is:
mural
(Other definitions for mural that I've seen before include "Painting on a wall, fresco" , "Wall art" , "Large wall painting" , "Wall decoration" , "Artwork" .)
I believe the answer is:
mural
(Other definitions for mural that I've seen before include "Painting on a wall, fresco" , "Wall art" , "Large wall painting" , "Wall decoration" , "Artwork" .)