This is great, Ana. I didn’t see anything I’d consider unnecessary backstory. I think you dribbled out information at a good pace. I was also glad you revealed her father’s crime because that was something I’d been wondering.
I like both beginnings. I think my only comment is that this beginning really changes the tone/reader expectations for your story. It’s much darker than the other, so I wonder which is truer to the overall tone of the story.