I think you have met the challenge well here by showing at least two primary areas of "off-centeredness." First, the main subject is off-center in the frame, and secondly, he is obviously "off-center" relative to the ground (meaning that he is not still or "stable"). The lighting is good, and the exposure works well here. The light areas are not blown out and the darker areas still have some details.
I think i tend to agree that the buildings in the background make it look cluttered. However, not knowing the landscape, I have difficulty suggesting improvements. Perhaps moving more to the side and taking the shot closer to the pole/support and looking further up.
Overall, it is a good shot, technically, but some people may have had difficulty seeing or understanding exactly what was happening. I know it took me several seconds.
Something else that may have been interesting would have been to try and "pan" the shot so that the background was blurring, but he was basically still focused really giving the sense of motion.
If you have any questions or comments, please let me know, and best to you in future challenges.
Nice idea! Good stopped motion. You never feel quite so off center as when you are jumping from a swing:) I like the hand against the cloud, and the climbing structure sphere looks a little like a planet that your subject is orbitting, but the rest of the background is distracting. IS there another angles you could have taken the pic from to minimize the houses? Probably not it looks like a full neighborhood. How about at night with a flash - the building would be dark?
Nice stop motion here. I like the off centered-ness of the guy. Colors and lighting seem a bit harsh and drab, but focus and composition are nicely done.