IC-Edit (documentation: https://river-zhang.github.io/ICEdit-gh-pages and demo: https://huggingface.co/spaces/RiverZ/ICEdit) generates changes in an image from an instruction, while remaining faithful to the original image.
Three settings are available: seed, guidance, and inference.

Very good results on objects and people, less effective on landscapes.

Open source, free and unlimited.

Images for testing: reve.art and https://fr.wikipedia.org/wiki/Fichier:Mona_Lisa,_by_Leonardo_da_Vinci,_from_C2RMF_natural_color.jpg