Acaic is for a MOC contest in which we have give our take of what a guardian would look like in the following realms: Chaos, Light, Nature, Shadow, Death, Protection, Time, Gatekeeper.
The color scheme is pretty decent and the shield looks alright and complete 
BTW where did you get that one armor piece on the back the green one?
Tires are your friends! Use them! 
Besides some awkward gaps, this is a very cool MOC. I like the use of Rahkshi shoulders and the custom shield is awesome! The color scheme is also nice and interesting.
I got that piece from the buildables Green Lantern set.