Snow and salt seem to go together . . . for lots of reasons.
• Sprinkle on salt. To create the appearance of snow-flakes, try adding a bit of salt into a wet wash in your sky or in a shadow area. The salt repels the water and pigment mixture, leaving light spots. The key to using this technique correctly is to make sure your wash is just right before adding the salt—if you add it too early while the wash is still too wet, the effect will be clumpy and harsh. You’ll also need to be sure to brush away the salt when the wash has dried completely. Otherwise it will continue to attract moisture. (Be careful that the wash is completely dry, or the salt and pigment can smear.)