Keep it simple. A theme you have heard from me many, many times. Simple, like this picture, of Zabriskie Point in Death Valley, that uses “negative space”:
“Negative space” does not necessarily mean there’s nothing in the picture. It means there is “no further information” in most of the picture.
Nor does “simple” mean there is nothing:
Simplicity simply means that everything that is in your photo is there because you want it to be there; because it helps tell the photo’s story. If it doesn’t, it should not be in the picture.
It’s as simple as that.
Michael writes photography learning books: his seven e-books are available at http://learning.photography.