Cliches are convenient short cuts ... we all hear them and use them in our normal language and it comforts us to repeat them. But they are also boring from repetition. The challenge of creativity is to find a way to wake the reader or listener up by presenting what they have not seen or heard before, or in a way that surprises them. That's my thought. It's true that roses are beautiful, but who doesn't know that? And is it original or insightful to talk about a rose and its thorns? There probably is a way...challenging yourself by not taking the easy way out makes the results more interesting for the reader. And that's part of the fun of having an imagination and being a creative person.