why choosing these two text prompt?

[anzeameol]

Hi, Thank you for your great work!
I notice that you use

prompt = "detailed high-quality professional image"
negative_prompt = "monochrome, lowres, bad anatomy, worst quality, low quality"

to generate images. I was reasearching on prompt engineering in image generation recently, and I wonder why you choose these two prompt. Could you tell me the reason? Thank you.