This is another scene i've done to test out volumetrics. I've done several different colour versions of it. It's so cool how powerful Color Management in the Scene Tab is and you must not Render it again and again. You can also test it out a bit even if you Render at the same time and the changes change realtime.
All textures are procedural or made by myself
1'114'104 Polygons
9 Particle Systems with many different models
Fishes with a boids particle system
Blender 2.73
Rendered in Cycles with 1250 Samples
Gimp 2.8 for small firefly correction