By saying final here you just saying that this local variable will not be changed in this function and functions will be called each time you call onDraw. If it is possible it's better to compose all this variables to another class like DisplayProperties and initialise it only once.
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.