Just as certain musical performers have “signature” songs that define their repertoire, so do makers of moving images. How to find and execute a signature “look” is not easy. But when it comes, your visual style will be unique among all others.
I once asked the singer Tony Bennett how he found a signature song like I Left My Heart in San Francisco. His answer lasted nearly 40 minutes, and involved personal taste, good writers and — in the end — dumb luck.