Comparison of glossiness between the front and back sides of a butterfly specimen

Comparison of the front and back of a mounted specimen of a male Atrophaneura alcinous spring form. The information in this illustration shows that the structural color on the left and the matte brown on the right are the same butterfly. When you write 'iridescent' to the AI, everything shines. The job of the prompt is to specify 'this part shines, this part does not shine'.