This was made originally for an exhibition against war, due to "logistic" reasons I won't participate, so instead I'll be sharing this here.
At the end this is against violence itself rather only war, the fist guy is violence (the wrong way) and the peace sing guy is, well peace (the right way). Peace background is yellow because green didn't looked right, blue made the whole piece look too USA and any other color wasn't appropriate for peace, no to mention red-yellow gives a nice contrast.