Prompt:

coloring book cover for kids, simple, basic, children’s colouring book, no detail, outline, vibrant color, of a cartoon simple unicorn around clouds and rainbows, fill frame, lots of color, edge to edge --ar 4:5 --style raw --v 6.0

儿童涂色书封面，简单基础，儿童彩色书籍，无细节，轮廓，生动的色彩，画着一个简单的卡通独角兽在云朵和彩虹周围，填满画框，丰富多彩，从边到边