Looks sweet.
The glow you use as a background really makes the icon seem much more flashy which is great. The fire is also good lookin'. The thing that ruins the icon is the arm-ish thing that the fire surrounds.
It kinda looks like a bone-claw from a bird, is that on purpose?
4/5 for now
edit: when I take a closer look, why is there a yellow highlight on the bone? it doesn't look like fire.