It depends on how unique the copied is and how similar the copier is.
From a decision about magazine covers: "None of the individual elements [...] ordinary lines, typefaces, and colors — qualifies for copyright protection. But the distinctive arrangement and layout of those elements is entitled to protection as a graphic work."
From a decision about magazine covers: "None of the individual elements [...] ordinary lines, typefaces, and colors — qualifies for copyright protection. But the distinctive arrangement and layout of those elements is entitled to protection as a graphic work."
http://scholar.google.com/scholar_case?case=3745368693852483...