The copper is not just on the fins, it's on the scales too. It's a trait which we've bred over time to have thicker scales. That is where Dragon's come from and he's not a full Dumbo, only a partial. He holds the geno but he's not a real EE, to be classified as an EE his ears have to be 1/3 of his body length, at present they are little less than 1/4 and are just colored pectorals. All the same, he's absolutely gorgeous!