A regal black swan adorned with glowing green gems basks amidst a fantastical crystal realm, its reflection shimmering beneath.
The image showcases a majestic black swan adorned with shimmering green gemstones. The swan is set against a backdrop of a fantastical, crystalline environment, possibly an underwater palace or cavern. The swan's body is covered in intricate patterns of green gemstones, and it has a crown on its head, suggesting its royal status. The water around the swan is calm, reflecting the swan and the surrounding crystals. The entire scene is bathed in a soft, ethereal light, creating a dreamy and magical atmosphere.