Is this lawsuit any different from music lawsuits? A lot of people are writing this lawsuit off saying "you can't copyright a style", yet musicians win these types of lawsuits even though the 2 songs in question are never 100% exactly the same, note-for-note.
With music you also can't copyright a style. Cases are won when there are specific melodic similarities that can be pointed out and the two pieces are very similar.
The Blurred Lines case was a notable exception and many disagree with the outcome and think it may be overturned if there's an appeal. Honestly I think the main reason they lost that one was because they said in interviews that they intentionally tried to make a song similar to the one they were sued over - they admitted to it even though theirs wasn't really that similar.
So again, you can't copyright a style whether it be art or music.