Recommended
Strength: 0.75 ~ 0.9 (Use lower strength for more flexibity).
This is my personal positive prompt that I use:
(masterpiece), (best quality), (ultra-detailed), highest quality, very aesthetic, illustration, breathtaking composition, intricately detailed, incredibly absurdres, realistic, newest, latest, [your prompt here]
As for negative, well, you can use mine aswell:
oversaturated, negativeXL_D, unaestheticXL_bp5, (watermark, signature:1.3), (sketch, worst quality, low quality:1.3), 4koma, sepia, unfinished, lossy, downscaled, pixelated, lowres, artistic error, fewer digits, extra digits, bad hands, bad feet, jpeg artifacts, old, oldest, patreon logo, watermark, signature, logo, web address, english text, abstract, bad anatomy, mutation, deformed, extra limb, missing limb, disembodied limb, disembodied penis, muted color, sepia