a fantasy style digital painting featuring a majestic, white, medieval castle perched atop a rocky outcrop, the castle features tall, pointed towers with pointed spires and arched windows that allow sunlight to stream in, its exterior is smooth and detailed, with a slight gradient from light to dark grey, giving it a rough, almost ethereal look, surrounding the castle are lush green trees with orange leaves, adding a vibrant contrast to the stark white of the castle, the foreground features a tranquil river flowing through the rocky landscape, with delicate white foam cascading over the rocks, creating a sense of calm and serenity, in the background the sky is filled with swirling dark clouds and a vibrant blue hue, enhancing the dramatic and mystical atmosphere, a large, swirling black hole in the sky serves as a focal point, adding depth and mystery to the scene, the overall color palette is dominated by blues, whites and greys tones, with the castle standing out against the rocky mountains and surrounding landscape, the artwork is rich in detail and texture, with the smooth, clean lines and vibrant colours typical of high-quality digital art.