3. Light

Man, this thing took like three attempts. I'm happy with the end result, though. If you can't tell, the lights are supposed to be fireflies. I don't know if it's a bit of a stretch to think fireflies = light, but it was the only thing that I could think of for this theme (and the only thing that worked!).

First theme: 1. Introduction [link]
Prev. theme: 2. Love [link]
Next theme: 4. Dark [link]
Last theme: 100. Gone (N/A)