I was going to say fallout, but something about this style really didn't match Fallout's design characteristics. Really, wonderful job on this pose, the use of animals as opposed to actual machines is never really used, but you have made it look so amazing. I especially like the armor of car doors. I saw that and kind of laughed.
One quarter of the male models are from the metro last light citizens pack. Another quarter are Metro 2033 stalkers that Ninjanub gave me for alpha testing and so is the guy in the black leather coat. The shotgun the guy in the black is wielding and the rifle the woman on the right carries are from a Metro 2033 gun pack. The mosin nagants with bayonets, the maxim machinegun and the PPSH-41 the man on the right has are from Red Orchestra 2. The shotgun and the stick the woman herding the cows has equipped and the blade the man in the foreground carries are from Fallout New Vegas. Last but not least, the big anti-aircraft cannon is from a Cod 4 vehicle pack.