Those two have so many similarities! There's the fact they look to be machines and!...that's about all there is, really.
Sorry, but they are not even remotely similar. How can a mechanical gorilla with an armored...eh...alien?!...that share zero design similarities, be comparable?
Hands?! Different, entirely.
Legs?! Gorilla feet VS unique, alien ones. Legs are smooth and uncomplicated on gorilla, with a lot of stuff on that trooper.
Chest?! A diamond-base on gorilla, with upper part being thicker than bottom (normal for gorilla designs), while a U-sign design for the trooper, with top being thicker only by that very tube than bottom (or a hourglass, dunno as the hands cover it).
Helmet? Different, again.
Back?! Well, the gorilla does not have anything sticking out of it, that trooper does. Can't see em, but I'd say the gorilla one have a smooth, armor-like back, while that trooper have a lot of stuff going on.