Contrast that with George Nick: Up close sections of these painting look like indistinguishable blobs. The paint is thick on the canvas and there are several colors in a brush stroke. This doesn't feel like such a fight with the paint.
This is a recent painting of mine (My submission for the water show). I've never painted as tightly as Fish, but for this one I loosened up more towards Nick (Though I doubt my surface is a quarter the thickness of his).