If the images you are using in your showcase are original, created by you, or properly licensed, you typically have the right to share your interpretations or reverse-engineered prompts.
Copyrighted Material:
If the images are copyrighted, you need permission from the original copyright holder to use them in your showcase. This includes images created by others that you may attempt to reverse-engineer.
See how AI interprets and reconstructs images using advanced reverse prompting techniques