What really is believable?
I once meet a most enchanting man that had me spellbound for hours on end as he spun yarn after yarn. THis stories were truly magnificent and very far fetched. When someone commented that they were totally unbelievable he simple grinned and said, "Why would you ever let the truth stand in the way of a great story?"
Photography is not reality it is at best a two dimensional representation of a three dimensional world. Photography, unless your are a journalist, is a story. It is your story, just tell it they way you want it to be and never listen to the rest of the world.