3D渲染彩虹云朵甜点壁纸背景

3d layered wave art: a giant rainbow gradient wave (purple to blue) with matte texture, white foam details, and scattered colorful particles on a dark background. dramatic and whimsical artistic atmosphere, 8k --style raw --s 850 --sref 165219771 --c 2 --q 1 --no blurry foam details, messy particle distribution, distorted wave shape --v 7 --ar 9:16