Under the law of copy<myspace><myspace>right</myspace></mysp ace>, you can’t reproduce art of somebody else. Only when that person is about 70 years dead, (in Europe at least) it’s free to do so.
Even if that artwork of somebody else is partially in your picture, as a part of your piece, you can’t say it’s your own piece. If it’s a bit recognisable in general as the art of somebody else, the real artist can sew. Buildings are public space, so that’s treated different I think.
Even a graffiti artist would have a strong case. His or her style would be personal enough, and if he can support his claim with own pictures of the work………. (I don’t think a graffiti artist will sew, because then he will probably win one case, and then be placed under arrest for violating some other law, for illegal vandalism.)
The eyes of a dead threesome Janus.