A a reflector, generally by bouncing light on to the subject from a slave flash, also can be used to diffuse light. Of course if you're referring to an umbrella as a prop, then lots of things including noetic's, a prop for modest nudes.
Pretty cool for women...go topless and then use umbrella to cover whatever...
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.