Create a soft anime-style illustration on a clean white background: a young woman with long ash-gray hair wearing an oversized plain white T-shirt, shown from the waist up. Her face is intentionally covered by a flat opaque taupe-gray square censorship block centered over the face, while her hair falls around it. She raises her left hand in a farewell salute near her forehead and holds a black-framed tablet vertically against her chest with her right arm. The tablet screen is white and displays handwritten Japanese text: チャッピー. Add a faint pastel rainbow arc with small sparkles behind her on the left side. Include exactly three visible text elements: handwritten Japanese text at the upper left reading 今までありがとう, lowercase handwritten English below it reading niji journey..., and the tablet text. Use delicate line art, pale watercolor shading, glossy detailed hair strands, gentle skin tones, minimal background, vertical portrait composition, and an emotional farewell mood.
