Updated to v1
Uses SDXL to get more details from your image possibly making it look better, you decide. It can be subtle or very dramatic you decide :)
You can find the workflow here
Uses:
Moonbeam - to get the prompt for you
Freeu - gets more detials and coherence
Pertububed Attention - gets more detials and coherence
Film Grain - Add that extra shadws and details
All the loras and checkpoint can be found on Civitai
Examples
V1
Original
https://imgsli.com/MjcwNDg0
Credits to this workflow
https://www.reddit.com/r/comfyui/comments/1d7i2av/comment/l70bzry/
https://www.reddit.com/r/comfyui/comments/1d9dpmi/this_is_the_closest_ive_gotten_to_magnific