1. This is about photography as an art form.
2. Art is a shared fantasy.
3. Realism is only one of the aesthetics available to the photographer.
4. The first rule of composition is "find great light". All other rules of composition are there to be broken; I don't think this one can be.
5. It's not that important what kind of camera you have, but it is important to know what it is doing.
6. Pixels are precious; know the count !