I mean, seriously, not only is it the exact same style of suit in the same blue-grey colour distinct from everyone else, but they are standing in the perfect spots to be symmetrical each other
Mordecai must have known there was going to be a big group photo ahead of time and then carefully planned this.
Got the matching suits made to his and Viktors measurements, then most impressively convinced/nagged Viktor into cooperating (he may have taken off the tie and rolled up the sleeves but hey him playing along all is quite a compromise from Viktor "I hate dressing up" Vasko)
Mordecai honey your not as subtle as you think you are
Shoutout to @lil-zlatko @thisisanerror @nichenarratives for drawing my attention to just how much Mordecai seems to want Viktor to be symmetrical with him XD