Texturing
After the buildings are done, I added point lights for individual windows, and created the smooth textures for the buildings.
Volumetric Smoke and Liquid
For the effects, I used Houdini to make a 120 frame smoke simulation. From there, I duplicated the smoke and transformed the .vbd volume in order to create clouds and atmospheric effects. Although the water texture is a still frame, the oil spilling out on top was created with RealFlow.