Complete the indicated task to unlock the corresponding concept art.

Art	How to unlock
Chimera	Vote on a Global Object in Global Resistance at myresistance.net.
Humans	Start a forum thread in Global Resistance at myresistance.net.
New York City	Upgrade five buildings in Global Resistance at myresistance.net.
Terraformer	Log in two times in Global Resistance at myresistance.net.
Weapons	Win five Skirmish Battles in Global Resistance at myresistance.net.