One needs to have a great appetite for work. And for appetites, there are appetizers.
If I wanted to copy the source photos I use to make my koi pictures, to make even an extremely accurate copy of the complex image captured by the camera both the fish and the water as they are frozen in a moment of time, with the myriad facets of atomized color, I could easily do it using any number of rational methods, as for instance using grids; but interpreting the image is what I want, and the distortions that I introduce from my observations, both my deliberate changes as well as my “mistakes” offer so much material to explore, and so I resist the temptation (admittedly it is weak) to reproduce the photo in an exacting way.
The photo already exists; why copy it?
But even if I did use a grid to transfer the image, and I may do that at last — I have done things like that with other works — within each of the small squares, I tell you, all the same freedom to muse and to invent still exists. You can introduce the distortions at whatever level of detail that you wish, in every little square.