This workflow uses PixelWave 09 and PAG to give amazing results with just 1 pass, no upscale. PAG really helps bring out the quality and cohesive details from the model. You will notice improvements to smaller faces, posing, less noise in the finer details.

Make sure to update comfy to get the PerturbedAttentionGuidance node. This workflow also uses some of my nodes from Mikey Nodes. You can install via the comfy manager extension.