How to use Graphite Aquarelle pencils Look at the different techniques employed by Luis Castellanos, a well-known Peruvian plastic artist working with Faber-Castell´s Graphite Aquarelle pencils. Look at the different techniques employed by Luis Castellanos, a well-known Peruvian plastic artist working with Faber-Castell´s Graphite Aquarelle pencils. How to use Graphite Aquarelle pencils