And here is the whole ally force made up of Commander Enforcer suits. I think there is enough variability in the poses to make the squad look dynamic enough and not just carbon copies of each other. I'd struggle to find a way to add another model from the same core model without copying one of the other poses though. Game rules-wise, this ally force consists of Commander Farsight and a troops Crisis suit squad with one upgraded to a shas'vre with the fusion blades signature system.
The next step is thinking about how to paint them. This will be my third successive project on the blog that, if not continued, would add to my hobby pile of (unpainted) shame so I'm definitely completing something before moving onto anything new. Since I've been having fun modelling the Tau, I'll probably continue working on them as well. My original Tau force is painted up in a WW2 US army green scheme with the corresponding white star decals. I'm not sure if I should continue it with these models or come up with something new but related. The standard Farsight color scheme is a deep red with some grey trim.
If I went with that, I'd go with a "russian" decal style with red stars instead of the white to signify the "ally" status and the more martial stance of the Farsight enclaves as well as the "communists in space" stereotype that the tau in general evoke at first glance. Alternately, I could continue the motif a bit further by doing a WW2 Russian brown base color instead. Alternately, I could research a USMC scheme to contrast my US Army one for my main Tau force. I admit that I'm fairly ignorant about WW2 USMC schemes beyond watching some John Wayne movies as a kid and vaguely remembering a patchy camo. Over the weekend, I'll try and look up a few more options but feel free to comment if you have any ideas in the meantime.