Explosion on the 58th floor

Simple scene but a long render, all it has is a building, one torus with volumetric fire texture, one chopper, 30 pieces of shattered glass, all setup on a cartoonish sky with little light.
It came to me after watching the movie Sin City, I am working on another scene which will have more of a Sin City look, that contains a car speeding on a bridge.

Cheers
J.C.