For awakening witch, Voltaic Pulse seems to be missing the ''impact'' sound effect that the lightning used do upon making contact with the ground and expanding (when the witch moves her arms downwards). Its been a long time since I could hear this sound effect that made the skill so epic and now I can only hear the sizzling of lightning.
Also, enemies hit by Thorns of Denial are highlighted in blue, as if they were being hit by a lightning skill. They should be highlighted in brown since Thorns of Denial is an Earth skill.