Though I am not 100% sure if this is the meaning behind this specific tattoo, the Celts believed the fox to be a guide, and was honored for its wisdom. The Celts understood the fox knows the woods intimately, and they would rely upon the fox as their guide in the spirit world.
Depending on where you’re from, wolves have different meanings. But usually, it’s a sign of strength and power. You can definitely add it to your forest theme for a tattoo that doesn’t just give a wonderful message but also a great design.