Great action shot, strong effective lines. You could go even further with the crop and lose the roof of the amusement ride. The wires and children in the chairs is enough information for the viewer. Less is more, yeah? I would also have gone for a portrait shot and shifted the negative space around slightly from the right so it's below their feet and adds to their elevation over our heads.
HEE HEE What a fun shot. I like the perspective and the imaginative take on the challenge. Thank you for not doing just a tree branch ! A for originality.