First model merger test I did, credits to the models below

DarkPhoenix 3D https://civitai.com/models/172393?modelVersionId=226913

majicMIX sombre 麦橘唯美 https://civitai.com/models/62778?modelVersionId=75209

Recommended settings

Sampling steps: 15-30 (Only use more steps as a last resort for very complex images, as an excessive number of steps tends to ruin the image)

CFG Scale: 5-12

Hires. Fix

Upscaler: 4xNMKDSuperscale_4xNMKDSuperscale

Hires Steps: 15-20

Denoising Strenght: 0,20-0,40 (The more force, the cleaner the image, but the more the original quality is lost.)

Upscale By: 1,5 - 2,0

Adetailer:

Adetailer Model: face_yolov8n.pt

Inpaint denoising strength: 0,25 - 0,40

ADetailer steps: 15 - 20