i might be seeing things, but... is that a titan in the back?
It does resemble the Metroplex body-type. You can see his head-mounted turrets emerging from the shoulder-line, although that could simply be his head observed at an odd angle.
At first I thought the tank was part of his leg, making me assume that this was way too small for a titan, but then realized that they're separate. Either I'm too tired for this analysis, or the shading needs some adjustment.
