Some of my first impressions (slight spoilers of the content in the clips above):
The music in each of the scenes does a great job complimenting what's going on. However it is definitely 'background' music, rather than memorable theme music so far. Of course that may change once we hear more of it.
The Admiral in the last clip refers to the "Alpha Predator" (presumably Godzilla) as a 'He'. Now the Admiral is no biologist, so the Admiral might not know, but using the 'he' instead of 'it' or 'she' potentially answers some gender speculation that has taken place.
Brian Cranston's Japanese is actually pretty good. I was impressed anyway :-)
We basically know now that the Muto have EMP, which is AWESOME :-) One of the more important implications of this would be it would limit the types of weapons we could use against them. So even if they aren't hyper durable, it wouldn't matter, because the most powerful weapons in our arsenal rely on satellite targeting and other things an EMP would disrupt. So we would actually NEED Godzilla to take these things down. It's not just a plot device, but an actual problem....and that's nice to see :-)
