Fantastical dragon with castle structures on its back, flying in a cosmic landscape under a starry sky

Framed poster featuring a vividly colorful, fantastical artwork with a majestic dragon at its centerpiece. The dragon is adorned with intricate, castle-like structures on its back. It has large, expansive wings that blend into a cosmic scene, with a large celestial body resembling the moon in the background. The dragon's head is finely detailed, resembling a stag with antlers. The surrounding environment includes lush, vibrant forests with a mystical glow, and a river flowing into the distance under a starry night sky.