Undine Flutist in Enchanted Lake

Create a cinematic fantasy illustration of {argument name="character name" default="Undine"}, a water-nymph flutist standing waist-deep in a dark enchanted German forest lake at twilight. She wears a flowing translucent {argument name="dress color" default="blue-green"} gown that merges with swirling water like silk, with wet shimmering fabric, delicate beaded sleeves, long wavy brown hair decorated with tiny blue flowers, and an intentionally obscured, featureless face covered by a soft neutral square blur. She holds one silver concert flute horizontally to her lips. Behind her, place one glossy black grand piano half-submerged in the lake with its lid open, reflecting moonlit teal highlights; water should cascade and splash over the piano strings and rim as if the instrument is part of the lake. In the foreground water, include exactly one ornate silver dagger or short sword with a jeweled gold-and-turquoise hilt lying partly submerged, hinting at betrayal. Add exactly two golden fish swimming on the right side, exactly six white water lilies with yellow centers distributed across the lake surface, and many dark green lily pads. The water should form magical circular currents around the musician and piano, filled with sparkling golden motes, tiny glowing musical-note-like trails, turquoise reflections, and luminous ripples. Surround the lake with tall shadowy evergreen trees, mossy trunks, deep forest greens, mist, and shafts of cool sunlight filtering through the canopy. Mood: romantic, mysterious, tragic, inspired by Carl Reinecke’s {argument name="music title" default="Undine Sonata"}, where the flute feels like the voice of a dangerous water spirit and the piano feels like protective dark water. Use ultra-detailed painterly realism, dramatic wide 16:9 composition, high contrast teal-and-gold color grading, volumetric light, crisp water effects, no text, no watermark.