Using the provided reference image as the character base, convert the rough sketch into a fully rendered, clean anime-style character illustration while preserving the same head angle, bust portrait framing, facial direction, and general silhouette. Keep the white background and the handwritten name/signature placement on the left.

Transformation: Replace the loose pencil lines with polished line art, smooth cel-shading, glossy highlights, and high-detail coloring. Give the character {argument name="hair color" default="deep red"} hair styled into the same swept-back bun shape, with loose front strands, and make the eyes {argument name="eye color" default="bright green"}. Refine the expression into a calm, elegant, slightly aloof look.

Costume and added details: Add an ornate aristocratic fantasy outfit with a tall cream-and-gold embroidered collar, lace ruffles around the neck, and rich metallic trim. Add exactly 3 prominent jewelry/accessory elements: 1 large gold-and-red jeweled hair ornament on the bun, 1 dangling gold earring with a red teardrop gem, and 1 oval red gemstone brooch at the front of the collar.

Text: Preserve the handwritten sketchbook feel of the left-side annotations, but make them cleaner and dark red. Include exactly 2 visible text blocks: {argument name="character name" default="Mariel Trust"} near the upper left, and {argument name="artist signature" default="IceEmperor"} near the lower left.

Style constraints: High-resolution polished anime illustration, crisp facial features, luminous eyes, detailed hair shine, refined fantasy noble design, no extra background objects, no additional text, no watermark.