Gothic Violet Throne Fantasy

Create a dark gothic fantasy anime illustration in a vertical 3:4 composition. Depict {argument name="character name" default="Riu"}, a small melancholic boy in black clothing, sitting curled forward on an enormous ornate high-backed throne at the exact center of a ruined cathedral-like palace. Use a deep {argument name="primary color palette" default="black, violet, indigo, and cold lavender"} palette with high contrast, glittering dust, reflective wet stone, and dim magical candlelight. The scene should feel like a cursed royal dream chamber: towering staircases rise on both left and right, broken arches and spires fill the background, and a tiny glowing angelic silhouette with white wings and a halo appears far above the throne. A huge ghostly face with long dark hair and large sad violet eyes overlays the upper background like a transparent apparition, gazing down through hanging black threads and chains. Include exactly these prominent foreground and midground props: 1 oversized throne at center, 1 seated child on the throne, 1 large black cat plush or doll in the lower-left foreground, 1 cracked skull with crown-like ornament in the lower-right foreground, 1 round birdcage to the right of the throne, 1 chessboard area at the bottom with multiple black and white chess pieces, 1 balance scale on the left, 1 heart-shaped hanging ornament in the upper-left, 1 crescent-moon hanging ornament in the upper-right, and at least 4 broken empty picture frames suspended or leaning around the scene. Add many thin dangling chains, strings, beads, black roses, scattered petals, shattered glass, puddles, candles with purple flames, and small sparkling particles. Lighting should be dramatic and cinematic, with violet glow from candles and the distant palace, deep shadows, intricate lace-like details, ornate baroque shapes, and a sorrowful gothic atmosphere. No readable text, no watermark, no modern objects.