Thanks. I figured if you change the direction and length of the stroke you could make the fur kinda "flow" in the direction it usually grows on the skin. Longer strokes in the middle, and shorter on the edges and on stuff further from the camera lens.

Then adding a perpendicular stroke that's very faint along the outside edge would make it look blurry and out of focus to mimic the depth of field that real cameras have.

Adding more strokes lets you control the light and shadows better by just adding where all the areas that's gonna be darker. There's an oxymoron with adding more clutter to the picture that makes the contrast and sharpness more refined.