Its as I said, its something that bugs me in answer to the original posters question, and it will also continue to bug me for ever more, its just my opinion and I dictate to no one how they do what they do.
But in the technical sense of the word a photo is as taken in the camera, drawing with the light, and altering by cloning or sky replacement it becomes an image as your now drawing with pixels..its a fairly simple thing to understand with a clear division, the main problems occur when people wish to stretch or bend that division.
And I'm far from being a purist, oh no..not me.
Steve...