#2-- can you clone out the person in the background?
#3-- can you make it a tighter crop that allows you to see the height of his jump still, but doesn't show as much of the background trees, fence, etc.
I'm not a skateboarder so I dont know how much of the ramps need to be seen but I'm just enlarging and moving them around on my phone and a tighter crop makes them look better IMO.