Updated to a version 1.2 with better skin textures. Usually avoids that default Flux plasticky skin look.
My preference is to sandwich prompts between two parts: analog photo of [your subject matter]. Scratched glossy photograph from a flatbed scan.
But you can eliminate or modify the second part to moderate the distressed effect.
Most obviously, the model adds scratches and dust marks as though the image were an older scanned photo print. As with most of my models, you can bring this aesthetic to a wide variety of subject matter. While many such models lean toward period-specific subject matter, this model remains flexible enough to generate historical, fantasy, futuristic sci-fi, or contemporary subject matter with the same aesthetic.
Beyond the damaged print artifacts, the model also brings a distinctive filmic color saturation and depth, while also somewhat mitigating the Flux model's default, overly-extreme, background blur. I eschewed the use of film grain.