Trying to enhance some old hentai mangas(image to image enhancement)

Recently I tried enhancing some old hentai mangas with very poor quality(some pretty much sketches) and got outstanding results with ChatGPT and Grok. The problem is, they don't do explicit content, so I tried using other online sites(like Civtai, Mage space) with different models, but none got even close to the results I got with the two aforementioned. The