The mood of Redon's work is deep and dreamlike, almost ethereal. To match the atmosphere, I think a soft medium such as charcoal, as Redon used, is most suitable. However, after completing the copy of Redon's 'I placed myself in Solitude', it felt like the charcoal was almost too soft. I wasn't gaining the texture within the drawing. Tone is very evident but on closer study, more detail comes out of the picture. A soft, yet at the same time finer point could be needed - maybe a 4/5B pencil would have been better.