The clearest comparison of heights b/w FT Terminus and CW Devy is the closeup photo of Sixo's review of FT Terminus because they are in very close proximity, almost facing each other. The Red line shows your previous comparison which is clearly not true. The green line is where Devy's shoulder properly lines up to Terminus. Your photo, like you said, is taken at a weird angle where Terminus is closer to the camera. And you also forgot to take into account that the yellow section on Terminus' shoulder/traps is smaller compared to the yellow section on Ultima Guards. That's why the red section just underneath Ultima's head is almost square compared to FT's rectangle shape. Also Ultima's torso looks longer than Terminus' which could probably account for the height difference.