The photo was taken years back when we were queuing up to get into the zoo, my sister snuggled up to the side of our mom's leg and dropped this mischievous smile to the camera.
So I took the snap, nothing has been staged.
Postproduction in PS, levels, saturation and a lots of masks.

Canon 6D
17-40@40mm
ISO 100
f/4.5
1/500s