masterpiece, best quality, ultra-detailed, (photorealistic:1.3), 1 beautiful young woman in her early 20s, (flawless fair skin:1.2), long damp wavy chestnut brown hair, elegant profile view of face, pensive expression, looking up and away, large hazel eyes, full pink lips, submerged in, (crystal clear turquoise water:1.2), up to her chest in a vast limestone grotto, (nude:1.3), (tops of large full breasts and deep cleavage visible above the water surface:1.3), smooth bare shoulders, serene atmosphere, enchanting, sensual. The background is a massive, dark cave with rugged rock walls. In the distance, a majestic waterfall cascades from a hole in the cave ceiling, illuminated by, (dramatic ethereal volumetric light rays:1.2), creating a glowing mist. The water has gentle ripples and reflects the light. Medium shot, eye-level camera angle, shallow depth of field, sharp focus on the woman. Cinematic lighting, high contrast, fantasy, ethereal beauty.