I got to work on the Voidstorm in Eversong Woods for the World of Warcraft Midnight expansion, which was based on a concept by our art director, Damon Iannuzzelli. It was complex to work on for a cloud, but it all managed to come together nicely. The orb and beam were created by Ethan Zink.
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https://www.artstation.com/pixelantics
https://www.artstation.com/ezink