I do a lot of work on tech because of my job, and when I am stuck I walk away and the answer many times will pop into my head.  I think my mind is so focused on the issue that I can't see the broader view of the issue.

So, I am trying the same thing with my photography for composition.  If I am stuck with how to create a composition I plan on putting my camera down for a few minutes and observe at the scene without using my camera.