I visited my family recently and played Injustice for all of 15 minutes. I've been in a DC mood the last 2 weeks as a result. So here.
The Guardians of the Universe have always had a neat look to them and are a great element of the Green Lantern mythos. Meanwhile, Sinestro is a villain that I have a weird affection for, mostly because of his name and Snidely Whiplash mustache.
I wanted to play with costumes a bit here. The Guardians usually wear something like a judge's robes, not necessarily "cool" but very iconic and relevant to their role as galactic peacekeepers. I tried to keep some of that while also referencing a Green Lantern uniform.
Sinestro is a rogue Green Lantern who tried to set up a regime on his homeworld. Given that "order through fear" has kind of become his theme I redesigned his costume with an SS uniform in mind (my original attempt was a little too on the nose and I had to scale it back). There are also elements of his modern and silver age costumes in there.