These are children bouncing vividly on a big trampoline at Showa Memorial Park in Tachikawa, Tokyo.
Captured a moment when a child was jumping into the foreground and the others were well balanced, and chose the shooting position the shadow of the tree covered my shadow, of course i didn't view the viewfinder, prefer seeing directly, since able to capture nicely the moment.
This small Mont Blanc seems to be a paradise for children.
Here is the original framing.