Looks good my I suggest Regarding the figures, I dont think that all 4 of them need to be a blonde, make some variation. Also spray the grass with some other shades and the empty cases are too much spread all over. Robert
Much damage to the building by not much rubble or dust. Usually there is dust everywhere, even with a small and controlled demolition.
Tracks look a bit rusty for an operational wagon too actually. I'd consider toning down the manhole cover a bit as those I see in the street don't look rusty at all.