The Elements are youngsters with special powers are gathered from around the world and trained by DEAVA, in order to pilot the Vector Machines.
DEAVA (Division of EArth Vitalization Advancement) is the organization that created the Aquarion mecha.
Once there was even a winged creature that could have been a Shadow Angel pet, it looked a bit like a cross between a fox and a dog.
It is revealed in the second season that this creature is named Pollon and was Apollonius' pet who later reincarnated into Apollo.
It follows the same basic architecture of the original with a couple of physical differences and uses massive versions of conventional weaponry of cannons, rockets and machine guns as opposed to the original's weapons of bow and arrows, sword and Infinity Punch.