Yes I agree with Quiim BUT I see why you want to retain the people at the bottom, one way out of this dilemna - if you have the tools is with Cs2 or 3, with the 'clone stamp' you could hide the car by cloning the stone work over...STILL I LOVE this photo :)
I would like to have the kids remain in the picture but not the car. I might go for the clone stamp but I'm not so sure the result would be flawless.
Other than that, GREAT!