It's not a style for everyone because it's very distinctive. But I must say that I really like it. Use it only if you like this kind of images.

0.8 strength is a good value. Lower values provide sharper images, while higher ones increase fuzziness (look at the different example images). No specific prompts are needed, but adding terms like deep blacks, clear, impact helps

The style is monochromatic, predominantly using shades of black, white, and gray to create a high-contrast, atmospheric scene. This style is often associated with a moody and mysterious ambiance, emphasizing silhouettes and the interplay between light and shadow. Textures may appear to be accentuated, and the lack of color can focus the viewer's attention on composition, form, and the emotional content of the image. The style might draw on chiaroscuro techniques, where the stark contrasts between light and dark give a dramatic and sometimes theatrical effect. It is reminiscent of noir art styles, which are known for their dark, gritty, and cinematic qualities.