I dont think the picture is displaying upside down. Green garden hose is on the floor of the garage in front of the barrels and the barrels are in front of a car with a blue cover on it.
The larger is from Costco, the smaller is from Lowes
I agree with the "bowing" that is dramatically shown with the smaller barrels. I was trying to think of a way to come up with a middle insert, but nothing is coming to mind that would be quick and sturdy.