Ole contra boss, human reaper front and center, huh? Probably would have downplayed that myself. Glad that the Catalyst isn't featured in your ME3 poster though!
I like it, my preference is FemShep, so I would have liked to have seen her instead of Sheploo, but I like what you've done here! I don't see a lot of people doing posters for some reason, this is a good idea. Keep up the good work.