For quite some time, I’ve been working on recreating certain mind-blowing visual effect scenes from the earthquake movie San Andreas. Here are some images of my progress.
I hope to receive feedback & ideas for my project. Thanks for your time.
Recreating stuff is excellent practice, you can learn a lot.
Looking good so far, would like to see it in action.
Looking very promising! Got a little animation to show us?
The stills are looking pretty good. Makes me curious how it would look animated 
How many particle systems are you using?
It looks from the second screen as if you are using only one. i.e. the effect is too uniform.
f.ex. The glass planes need to be separated and get their own, denser, particle system for the shatter effect.
My 2 cents would be adding in dust as the concrete breaks apart and smaller particles systems for paper and other office debris. But its looking pretty good!
Motion blur give the debris more life.mate paintings.projection mapping the buildings (painting).
You can also use real footage and track suff and composit it.