There's nothing fancy here--I just like the look of this one. And it works pretty well. This started out as the standard Alligator indicator. There I reset all the offsets to 0 and added an Ichimoku Cloudish fill.
Astute observers will notice a fourth line has been added at 34 SMA. It's a bit of a cheat. 34 SMA is the zero line of another classic B. Williams indicator, the Awesome Oscillator. When the green line crosses over 34 SMA, it's quite likely the Awesome Oscillator will have changed sentiment as well. It also makes a nice loose trailing stop loss reference if you're hoping to get into some long trends.