Used the Joepenna DreamBooth repo and trained on Dreamlike Diffusion 1.0. It is trained on some renders of his 2018 character model without his beard to give flexibility with his facial hair.
Prompt with token and class "kratos person".
Prompt for facial hairs like beard, shaven, goatee, etc.
Fix faces with Upscale R-ESRGAN 4x+ and inpaint at a lower dimension with "Only Masked" checked.
Run your photomode shots of him through img2img.