I hate to be the downer here, because I truly love 5/6 of these, but the Shock/Electrical doesn't exactly make me think of electricity. It's really close to the fire colors and even if the effect is as different as portrayed, it will likely be confused from a distance. Could we just change the base color to a deep blue or something? After all, when electricity arcs, it is a blue-white light that is given off. Not a yellow-white light.
Massive thumbs up for those rendered corrosion VFX though!