A majestic Celtic dragon in a mystical landscape. The dragon has intricate patterns resembling Celtic knots across its shimmering scales. Its eyes glow with an ancient wisdom, and it has large, powerful wings adorned with runic symbols. The dragon's body is muscular and agile, with a long, sinuous tail that ends in a spiked tip. The background features a misty, enchanted forest with ancient stone structures covered in moss, and the air is filled with a magical, ethereal light.