Anachronisms

Just a quick post/question: what do people think about wildly and deliberately anachronistic cover images? Here, for example, are two recent-ish Modern Library Classics editions of nineteenth-century Russian novellas, but with decidedly 21st-Century covers which, while thematically appropriate, are obviously not at all accurate for the contents of the books.

They make a pleasant change from the usual old paintings on classics covers, but do they work?