A colossal sentient world-tree named Bartleby. His entire face is naturally carved out of thick, ancient oak bark, with no human skin. His features are deep ridges and knots in the wood. He has a massive beard and long moustaches made entirely of thick, twisting silver roots and hanging Spanish moss. His eyes are large, glowing golden orbs set deep within hollows of the bark. He has a very wide, weathered expression of an ancient grandfather, but his anatomy is 100% botanical and wooden. Huge branches emerge from his head like a crown, stretching into a cosmic sky. High fantasy illustration, focus on rough bark texture and root structures, 8k, Unreal Engine 5, no human flesh.