Mental Ray light testing

Here's a light test that i did with mental ray trying to emulate a ocean scene. Im currently doing a tutorial i found on the net to add rays into the lights which ill post soon. I recon this is the effect that ill be looking for when i do my final animation of the rollercoaster. adding some density into the lights will give the cloudy effect of water and changing the enviroments colour should give a better over all look.