Cristo Rei Demolition Final V2

Hi there. Final comp for the Cristo Rei Demolition, 1st exercise of CGWorkshop with Allan Mckay. I'm not entirely happy with some passes and layers, however for an exercise i think it's more than enough.
Difference between this and the other comp is small. I've added a couple more rock debris falling in the beginning, set the "building smoke" to be much more subtle and added more atmosphere in the upper parts of the image, since its more far from the camera, so it doesn't become so black as in V1.
Enjoy. Oh.."little disclaimer": Im not trying to piss religious ppl, so sorry if you feel bad about it getting demolished :)