A piece from my Pen Sketchbook Project, cleaned up a bit in Photoshop, with a parchment-like background and frame added.

This is just a green tree spirit/antlered dude; he's not Cernunnos or Herne. I used a wet brush to blend the ink a little. His eyebrows are inspired by a book's character who had a "permanently surprised expression", and his face - like the other Green Spirit Things in that sketchbook - is rather like my old Eastern Influence faces.

NOTE: Just wanted to add that he's not based on something called "Endless Forest"; he's a combination of the things I listed above, and any resemblance is coincidence.

For more information on the Project, please see here.