Banksy has also been long criticised for copying the work of Blek le Rat, who created the life-sized stencil technique in early 1980s Paris and used it to express a similar combination of political commentary and humorous imagery. Blek has praised Banksy for his contribution to urban art, but said in an interview for the documentary Graffiti Wars that some of Banksy's more derivative work makes him "angry", saying that "It's difficult to find a technique and style in art so when you have a style and you see someone else is taking it and reproducing it, you don't like that."
Many home owners choose to display the traditional art and culture of their society or events from their history in their homes. Ethnic murals have become an important form of interior decoration. Warli painting murals are becoming a preferred mode of wall decor in India. Warli painting is an ancient Indian art form in which the tribal people used to depict different phases of their life on the walls of their mud houses.