Ok, I managed to snap a few quick shots. These are just bluetacked together, and I didn't have time think much about posing, bases etc, so please bear that in mind. Photo quality isn't great, but should give you some idea?
In top picture, starting from left: Mirliton, Gripping Beast (I think), Fireforge, and another Mirliton.
In real life, I would say the Mirliton & Fireforge templars would go OK together. Gripping beast is perhaps the smallest, but not by huge margin. I guess when they're painted, the differences disappear even more?
I didn't include much in the way of weapons, but note that some of the Fireforge hand weapons look real big, perhaps due to the medium used they need to be more robust?