There are a few trees that turn purple in autumn, and the purple ash (Fraxinus americana) is one of them.
This was sketched using a Pentel ultra fine brush pen and Faber Castell Pitt brush pens.

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There are a few trees that turn purple in autumn, and the purple ash (Fraxinus americana) is one of them.
This was sketched using a Pentel ultra fine brush pen and Faber Castell Pitt brush pens.