Portal by the Waterfall

A serene scene at the edge of a dark forest, where a small, hidden waterfall cascades into a crystal-clear pool. A figure in a flowing robe stands by the water's edge, looking at a shimmering portal hovering above the pool's surface. The portal emits a soft, iridescent light, casting colorful reflections on the water. The scene is painted in rich greens and blues, with a touch of silver. The style merges fantasy with romanticism, focusing on the magical and serene aspects of nature.