This wolf has an intense and determined expression. Its rich, grayish-brown fur is contrasted by golden eyes and a black nose. It has perked up ears and open mouth, ready to howl, giving the impression that it's on the hunt. I'd suggest highlighting the fur with gradients of light brown, and adding a subtle yellow glow to the eyes. For the background, using a light blue shade would give a peaceful yet dynamic look to the scene. The light tones would complement the wolf's darker fur and bring its features to the forefront.