Anime girl portrait, holding a sign with the text "hello world", gentle smile, long flowing hair with intricate details, soft pastel color palette, sakura petals in the air, ethereal glow, starry night background, delicate facial features, large expressive eyes, detailed eye reflections, ornate hair accessories, off-shoulder dress with lace details, soft rim lighting, bokeh effect, dreamy atmosphere, 4K resolution, digital illustration, anime wallpaper style, ultra HD, studio quality rendering