Ok, you said harsh critique. I don't like the photo. The problem is NOT with the subject - the little girl. It's where she is at. In the original picture you have the box car (or whatever that is) sticking in in the upper left. I would have cropped down just like Shoot Raw, and there are some editing issues that come with experience. But that's not why I don't like the image. The picture begs the question of WHY? Why is there this l lost little girl standing in a rail yard? Recomposing the shot with her maybe trying to balance and walk down the train track rail would give me some rhyme or reason as to why she is there. A cute little girl balancing down the rail is an image we can understand. To boil it down, I just don't understand the setting.
A picture often tells a story, for me the story in this picture is "I'm Lost!"
The little girl is at a perfect age where children are just oozing with cuteness. Go back out and try again, but when you shoot think about the "story" behind the shot.
Anyway, that's my two cents devalued to a single cent.
Welcome to the forum.