What do 2 new pieces of concept art tell us about Pacific Rim?

Guillermo del Toro's giant mech extravaganza is still a bit of an unknown, but these new images might shed a little more light. 

Japan has always had a lot of success with the mech genre. The United States? Not so much. But what's nice about Pacific Rim is that it looks like it's attempted to reach for a global audience. That and, based on these two new pieces of concept art, they are crafting some very cool-looking robots and aliens. So let's take a look at what we've got, and you tell us if these new images are helping to build your excitement.

(via Comic Book Movie)