Well I hate to be that lone voice crying out there in the
wilderness, . . . again. But I have a different opinion
about the colors of the ground tiles/street and the
wall colors. I feel that white and gray would work. But
I generally like to pick colors that go together in a more
harmonious color scheme. With the figs you have an
OD type of green and the sun tanned brownish kind of
flesh tones. To me a street/tiles color that would be
more in harmony with the green and tanned skin would
be a lighter tan with darker washes in the "cracks" of
the tiles. And I would make the walls more of a lighter
tan with some yellow and a touch of pink in the mix.
To me this would be more interesting and not so
stark as you will have with the white wall. Of course,
you realize we're just taking about personal taste in
how to use colors here. What the others suggested
would be OK.