I have to agree with DaBrain - these maps are not metalic enough.
I don't mean that they're bad or anything - they just need some more reflectivity. The way they are right now is excelent for Vasudan ships or maybe Shivans, but Terrans need a harder shine map IMHO.
The best comparision I can come up with is plastic - you ship looks like a well polished piece of plastic, the problem is that plastical nice maniquen look doesn't fit with Terran design.
The older version was too harsh though - what I saw as the best example were shots of the Athena, when its base texture was used as shinemaps or the Apollo - those ships could look really good even without additional maps. Of course it could come off too harsh, but the Athena was nice.
I don't know what's your method of development, but if you're giving our public opinion some thrust, could you try a more 'metalic' version with harder shines?
That's my 2 cents on the issue.
The environment mapping, the texture sharpening, and the ambient parts look super. If this plastic/metal looking issue were solved than your terran ships would get 5/5 from me insteam 4.8.