Here is something I did for the Volskaya map in Heroes of the Storm "Volskaya Foundry". This is my take on the giant iconic Mech and a fun challenge for me since I never do any hard surface. I tried to make it read for heroes and stay kinda stylized/clean.
I actually used Zbrush to model everything, blockout every shape and then used 3dcoat and max to retopo and clean up. If you are interested in seeing breakdowns of the Zbrush I can add them.