I am really in love with this piece. The colours, for once, the repeated, dark, glowing colours, the blue in the sky and on Mox, the golden from his eyes and sigils. The background is wondrerful as well, making an atmosphere, a feeling of story. The roughness of Mox shows the mix between feathers and fur wonderfully. I love the flow of his mane and his tail, his pointy nose and staring eyes. I think both the cliff and the birch-trunk frames the piece really nicely, makes the grey of the background not too dominating, yet still gives that feeling of something that keeps on forever. The bird is a really nice detail. And your short description is really powerful.