Saw the new 52 version of this New God character and liked it so much I wanted to one for myself.

Started with a ML Series 10 Cyclops Head. He had a somewhat snarling demeanour on his face which fit the facial expression Orion needs. culpted a thick band for the visor band on his helmet.
Almost went with a ML Boomerang for the head. I went with my gut and stayed with the Cyclops head.
Torso-Hydra Soldier Minion. Sculpted Y straps.
Arms-Giantman. Left the lower arms as is. Some sculpt on the fists and silver belt.
Lower legs-DCUC Captain Boomerang. Did not need to do much to this but touch up some of the silver braces on the lower legs.

I am happy that the swap and mix of DCUC Lower body with ML Upper body transitioned ok. He still has full range of motion.
Took some liberties with the costume so it is not comic book specific, but that is the bonus of customization, you can do what you want.
I think on a subconscious level I must of had Ant Man on the brain because the "Y" straps kinda remind me of his costume.