Wow! I like the texture and detail in the fur of the adult wolf, and the eyes glow with a bright boldness. The colors of the wolf's design are simple yet elegant for a natural appeal. The background you drew has a gentle fantasy aspect to it, especially where it quickly fades into the distance. Are the small floating lights bits of pollen, fireflies, or fairies?
One criticism I have would be that the adult wolf's front legs seem unusually long and thick in proportion to the rest of the body.