If Daniela Diamond is a real person, perhaps she's a contemporary artist who used techniques to make her work look like Italian masters, and that's considered her "Italian job." Or perhaps there's an article that discusses her work in the context of Italian art. Alternatively, maybe it's a play on words—since the Italian Job is a movie, and Daniela's work in Italy was a sort of "job" or venture that was compared to that movie's plot.