The best technique for shading a moose's fur is to first identify the direction of the hair growth and then use short, overlapping strokes to mimic the texture of the fur. Gradually build up the shading by layering lighter and darker tones, paying close attention to the highlights and shadows. It's important to blend the strokes smoothly to avoid a choppy or unnatural appearance. A combination of pencils and paint can be used to create depth and texture in the fur.