Well, I'd rather not waste either of our time editing photos that you don't actually intend to use. Since you like this photo of the two girls against the green backdrop, I'd prefer to concentrate our efforts on finding a style that works for them.
There's so much wrong with this I don't really know where to start.
First of all, please read this and tell me when you have done so: https://www.damiensymonds.net/2011/09/cropping-tutorial.html