Just water colors. I actually have some water color pencils, but to be honest, I don't have the slightest clue how to use them. Using a very finely pointed brush can give you a line finer than that of a pencil, anyway. If you do know how to use water color pencils, can you let me know? The one time I tried to use them, the picture came out looking like it was colored with an old crayon. Thanks.