This After Effects Experiment is all about fire. There are plenty of ways to create realistic fire in After Effects. For my experiment I used the Ellipse effect to create the rings along with Turbulent Noise, Curves and Displacement Map to create the fire. Take a look at my project then give it a go yourself by either making mine look better or starting from scratch to create your own recipe.
Here’s my project file. Take at least 30 minutes and see what you can come up with, then post a JPG or movie link in the comments.