Prompt: An authentic strict 2D anime style masterpiece framed in a 9:16 aspect ratio, featuring sharp clean lines, flat cel shading, and a completely flat matte dry skin texture with absolutely no oily or glossy reflections. The character is wearing an elegant, pristine white silk mermaid sheath dress that fits tightly around her waist and hips, cascading into a long floor-length trailing hem on the floor. The dress features a dramatic backless design, completely exposing her bare back down to her lower waist. The character is a stunning, highly mature woman named Nyx (nyx) with a monotone permanent deep dark ebony skin tone and zero tan lines. She is captured from a back view in a three-quarter perspective, standing by a vintage wooden dresser and looking back over her shoulder at the viewer with open glowing neon-blue eyes. Inside the large open back cutout of the dress, a single thin, crisp, pure white painted arrow line runs vertically from the back of her neck straight down her entire spine to her buttocks. Her hair is a short black bob with vibrant neon-blue tips and space-buns neatly styled along a clean hairline, complemented by vibrant neon-blue lips. Three thin white painted stripes encircle her neck, right arm, and right leg. The tight fabric of the white gown perfectly highlights the round, shapely contour of her buttocks. The background is a luxurious, dimly lit moody dressing room under soft low-key studio lighting with deep cinematic shadows.

Model: WAI Illustrious and Pony merge 1.0