ES artists do have a reward system, the same one the rest of the ES have. However, event artists do not moderate or, for the most part, run official stuff ingame or on the forums, so they do not have a distinguishing color to avoid confusion. (That's the reason staff have colors, by the way, so that you know they're staff.) Plus, like Reta added, you can choose to get a special usertitle displaying your position.
Believe me, ES artists aren't underappreciated in any way. We need (and love) active artists, and you get some cool perks for being one.
Last edited by Kahn; Jul 24, 2017 at 01:21 AM.