This looks to be another Grade-A cover in the works from you, Kernie!
If you're looking for suggestions on the front, would rotating Scarlett a few degrees clockwise work? The angle of her body seems a little awkward (unless I'm misinterpreting her pose). I tried 15° in this mock-up, but that might be a bit much.
On Iron Man, maybe you could add a little extra grit / metal texture / damage or perhaps up the contrast a little bit more? He seems really factory-fresh.
Adding a heavy block of everyone's names up top would probably balance the cover out really nicely, too, depending on what else you might have in mind.
Keep up the outstanding work, sir!
[attachment=33700:Civil.jpg]
For the back, maybe you could do something similar to what you have on the front, with one team on the left, one team on the right, a little scenery/battling along the bottom, and a synopsis in the middle. This is kind of a cartoony take on that direction:
[attachment=33702:1499971bh.jpg]
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