Part usage galore! Fantastic joints and couplings really make this an otherworldly robot. The shaping of his body looks like it was patterned off the alien engineers that created him; namely in the legs. Love the use of the Bohrok windscreen, the octagon, however, is a different one from the Mystery Pieces but I love the choice instead, this one is more appropriate for delivery of vital fluids. Fair trade. I think any improvement here could only be made in the character. Much like Tim C.ís police mech, yours needs just a touch of personality; something to give it a relatable, blend in sort of feel. I think what you have here is a start of future stories where these guys are the strong arm of some totalitarian gubmint; tons of potential for expansion. In short, a fully realized vision. Excellent!