Author's Note: This one is very personal (more in the comments for the sake of anonymity)
The mouth and hands of the girl are from the original photograph. Everything else is painted.
The painting of the dancers is my own, acrylic on canvas.
The floor was created in Photoshop using this tutorial.
I have a model release for the little girl.
I didn't do a sketch for this one, just the three main sources that I worked with.
Sources
Good luck to everyone!