Use CyberRealistic epiCRealism Realistic Vision for better result

• Use simple prompts. Complex prompts might make less realistic pictures because of CLIP bleeding. More complex prompts does not mean better results. Keep it simple.

• Use ADetailer to enhance faces. Basically every solo portrait I made uses it. You can get my settings by clicking on "copy generation data". I suggest you use denoising under 0.3 to avoid getting always the same face.

• Use BadDream and UnrealisticDream negative embeddings (BadDream, (UnrealisticDream:1.2)). Add weight to UnrealisticDream between 1.2 and 1.5. Do not use FastNegative or EasyNegative if you aim at realism. However, they're good for artworks.

• Use Highres.fix with the following settings: Denoising strength: 0.45, Hires steps: 20, Hires upscaler: 8x_NMKD-Superscale_150000_G and as much upscale as you can (my gpu only handles up to x1.8 at 512x768 base resolution, but you can go higher). If you don't have 8x_NMKD-Superscale_150000_G you can probably use another GAN, but it should be easy to find on Google. You can also try Latent with a denoise higher than 0.6, but the result will be harder to control.

• Try to condition faces by prompting for eye colors, hairstyles, hair color, ethnicity and so on. Even celebrity names do work. This model is pretty good at not making a single face if you play with the context.

• If the pic is too clean, try to add some ISO noise. Even as a post processing with external tools it will trick the brain enough to make you think "damn, this is a real photo.

• If you feel the grounded nature of this model is limiting your imagination, try generating on DS6 and then do img2img with this one to bump up the realism.