If you were trying to make him have a Pohatu Mata function, I guess you succeeded.
But unfortunately the MOC suffers from this. Going about it in that way has been proven multiple times to not work unless you make some sort of really compact custom gearbox.
The hips are way far apart, the body is shaped awkwardly, the armoring is odd.
I can understand that you had part restraints, but this alternate build looks like a Tahu who let himself go. Maybe try going for a more unique design?