I finally finally FINALLY found another female variant! Here, right here! Google Translate, thank you!
Yes, it's in French.
But the story's Spanish and it's a variant of the generic Thumbling tale with a female protagonist called Maria comme l'ail, or Maria like Garlic. Still have to find out what that means in Spanish, but still, it's another girl.
This website is based on my research into folklore. Home to the Thumbling Project, collecting different versions of Tom Thumb and Thumbelina from around the world.