Brute Customizer Pack: Metallic vs. Matte

I have gotten this set 3 times, the 3rd being the one that arrived today that I ordered for pieces to make customs. Now, if you have gotten this set, you probably know what they look like; One Brute has dark gray armor with matte orange detailing, and the other has a darkish-silver color with matte blue detailing. This has been the case for the past two times I've ordered this set. However, this time, the blue one came with metallic blue detailing, while the orange remained the same. I am not complaining. At all. I much prefer this metallic color. I am, however, slightly confused about the discrepancy between this order vs. the other two, as well as the box art and example images shown on Amazon (where I got it). Just wondering if anyone else has seen this before.

-Gregor