I might know. I am one. But, not like, "Wooo Hooooo, la la la la la, put me in a rubber room!!"
Go online and look at any portfolio of a graphic artist – every artist follows their own style. Ask an artist for an interpretation of your brand and it winds up looking like their style.
This is not a bad thing. A great graphic artist is crazy about expressing themselves to explain YOUR BRAND. It's hard to express the visceral emotion of what you feel about whom you are, which is the job of a graphic artist, while remaining true to their personal style of expression.
I say, pick crazy every time. If your graphic artist is not crazy, you've selected the wrong artist.