Crystal cat familiar with rainbow refractions in a fantasy palace

Prompt

Create a luminous fantasy anime illustration of Nico, a small elegant crystal cat familiar standing in a majestic cathedral made of glass and gemstones. The cat has a petite foxlike feline body, oversized pointed ears, a delicate smiling face, long white whiskers, and large sparkling violet-blue eyes with glossy highlights. Its entire body appears made from translucent faceted crystal, primarily icy blue and lavender, refracting rainbow prismatic colors across its face, torso, legs, paws, and ears. Add one diamond-shaped gem embedded on the forehead, plus a faceted jewel collar or chest ornament. The cat stands in a graceful three-quarter pose, front legs straight, back slightly arched, head turned toward the viewer, with an expression that feels magical, confident, and gentle. Include exactly two long flowing tails curling upward behind it, each ending in a bright crystal flame or gem tip: one glowing pink-magenta and one glowing cyan-blue, both surrounded by tiny star sparkles. The setting is an ethereal crystal palace interior with tall arched columns on both sides, stained-glass windows glowing softly in the background, a polished reflective floor, and distant gem formations. Use a pastel palette of blue, lavender, pink, cyan, and pearly white, with soft volumetric backlight, rainbow caustics, glittering particles, lens-like starbursts, and a dreamy high-detail gpt-image-2 fantasy art style. Keep the composition centered, full-body, square format, no text, no watermark, no extra animals.