Create a high-resolution, photorealistic image of a mystical mountain range with floating islands, set during a magical twilight. The scene should depict towering, snow-capped peaks with lush, verdant valleys below. Suspended in the air above the mountains are several floating islands, each with cascading waterfalls that spill into the clouds below. The islands are adorned with ancient ruins, mystical flora that glows faintly, and crystalline formations that catch the twilight light. A crystal-clear lake reflects the entire scene, adding to the surreal beauty. Dragons with iridescent scales can be seen gliding gracefully between the islands. The sky is a stunning blend of deep purples, blues, and pinks, with a large, glowing moon and twinkling stars. The overall image should evoke a sense of wonder, enchantment, and the otherworldly beauty of this fantasy realm.