Funny how they describe Mass Effect 3 as being about Earth getting attacked by a "new enemy". There's nothing new about it, it's "more of the same", they look just like the techno-organic hand-shaped ship from the first game, probably a different name but the same look. They have no subtle motive, no interesting philosophy, they just want to control and to "plunge the galaxy into darkness".
I bet their footsoldiers will have no identifiable faces, they won't bleed or make suffering sounds when dying, it will be just like shooting crash test dummies, to keep the PG-rating down.
I like the design and style of Mass Effect, but they should get more than two people to do the concept art so you have variety, this trailer looks like they used whatever wasn't used in the first game.