For best outputs:

Sampler: DPM++ 2M

Steps: 40, cfg 4, CLIP skip 1.

VAE: none required.

Pos prompt: this model is set to realism, and can be pushed to photorealism with the proper keywords, like "35mm photograph, sharp focus, studio photo quality, soft volumetric light, sharp focus, bokeh, professional, film, 16k, ultimate quality, exquisite beauty, high texture resolution, photorealistic, hyper realistic, fantasy setting, epic composition, OverallDetailXL" added at the end of your pos, being the embedding "OverallDetailXL" found in my example runs.

Neg prompt: "Bad quality, low resolution, bad anatomy, boring, open mouth, plastic, noisy, watermark, signature, semi-realistic, over saturated, boring, out of frame, cut off, cropped, duplicate, tiling, signature, watermark, low resolution, jpeg artifacts, bad shadow, gaussian noise, deformed, disgusting".

Checkpoint Merge.