The other issue, which I keep harping on, is what are you going for: is it "photorealism" as a camera would see it, as your eye would see it, or as your brain interprets what your eye sees?

We all (okay, those of us without vision problems or brain issues) have a photoprocessing and interpretation system running full time which is constantly adjusting on the fly, changing focal distance, changing aperture size, adjusting light levels and colour saturation and so on.