Conclusion

This quest has hopefully given you some ideas of how to achieve tone using various materials and techniques.  It is meant as a taster, so that you will be encouraged to experiment and adopt methods for your own work.  The  introduction to Internet sites I hope will wet your appetite for doing more research.  There are undoubtedly hundreds of artists who have alternative techniques which could be equally effective.  Perhaps your teacher will allow you to hunt them out in your own time and use the information as a point of discussion for a future lesson.