Questioning appeal decision reasons

My appeal was recently rejected for a reason that makes no sense. “The nomination in question is a sign that does not meet the Wayfarer criteria, as it is not unique”. It is very clear from the picture that this is a one of a kind, hand painted piece of artwork on a downhill ski. Very unique. I was on a trip and and unable to resubmit this so would appreciate if an employee could take another look at this.

“Gas Got You Down? Ride a Bike!” at (38.867450,-106.981396)