I've changed my style constantly, so I'm not sure I have one defined style, except perhaps style of subject matter.
I have skipped from style to style from film to film, and I love doing that because it's given me the ability to free myself from the past. Perhaps one of the worst feelings that I can have is the feeling that I'm locked in, like a prisoner of myself, which is something we all feel at some point in our lives. So part of making those stylistic jumps is just to free myself up-to get away from the old or the old Oliver Stone.
I've changed my style constantly, so I'm not sure I have one defined style, except perhaps style of subject matter. But you learn as you go, I suppose.
You always try to find the right style for the movie. That's the key.
Every movie requires its own style. Just be honest to the story. Tell the story in the best possible way that is different, exciting and original.