Previous Lit Scene
Changed the Spot Lights to a Lighter Blue
Added Volume Lights to Plant Life to Simulate a Glow
After adding a little more detail to the lighting testing I had worked with previously, I asked Simon what other techniques I could use to create a deep sea fell to our scene. He said it would mostly come from our work with light in the scene. He did also suggest some subtle particle effects in Aftereffects to move past the camera view. I feel that the bottom render image in this post is quite close to the basic lighting setup of our scene.