Create a highly detailed, realistic 3D animated model of a dragon sitting down. The dragon should have large, scaled wings, a long, sinuous tail, and sharp claws. The body should be muscular, with intricate scales covering its entire form. Its head should feature menacing eyes, sharp teeth, and an expressive, intelligent look. The dragon's posture should convey a sense of calm and strength as it sits, with its wings partially folded behind it. The environment should include soft lighting and a mystical, natural setting, like a rocky cliff or a lush forest, to enhance the mythical and powerful essence of the dragon. The animation should include slow, fluid movements of the dragon’s tail and subtle shifts in the body as if it’s breathing and observing its surroundings