I took this whilst out traipsing the countryside with the camera. These two are sitting in a John Deere with an adult male driving, this is a pretty heavy crop.
I think the heavy contrast works to give the children a demon spawn look but the crop, leaving all that empty space on the left, just lets all the tension drain away and conflicts with the look.
Maybe cut away the left third of that square crop? I didn't really get chance to get too close to them, they were riding out and I didn't want to hold them up.