Crystal Entity Concept Art in a Painting

A luminous crystalline entity floating in a dim, cathedral-like chamber, rendered as concept art for a fantasy painting. The entity is composed of multifaceted crystal prisms that refract light into a spectrum of colors, with a glowing core and delicate, translucent edges. Surrounded by soft mist and drifting motes of light. Painterly yet precise brushwork blends neo-fantasy concept art with high-detail crystalline textures, dramatic lighting, and a moody palette of blues, purples, and golds. Dynamic composition, slightly from below, with reflections on a dark, tranquil pool and a sense of ancient magic and otherworldly presence.