very nice work Jinx. love it. And I agree with upping up the stats somewhat, with that size it will be the easiest to hit thing in Sirius for sure...
As to Eternal - among other thing, Jinx' carrier doesn't have the cloak "arches" as I call them. Mine have one set for the body, and one for each launch pods. The Order carrier is compact - and if I might say, reminds me of the japanese carrier concept, where they sort of converted a battleship into a carrier by strapping an airfield on it.
This carrier doesn't care for size, and is made to operate in open space - for all that matter, battleships arent exactly made for TL anyway... As such, it can reach immensities and have enough place to store all the electronic equipment needed.
The darker skin is due to the fact it is a very modern vessel. As Jinx pretty much explained, the Osiris was the newest prototype and as such, had darker skins. Same goes for the Anubis, which is in fact an upgrade of a Liberty Defender (strangely though to me it looks more like a downgrade because the high tech looking wings were replaced with quite conventionnal ones...).
hehe roleplaying in that thing would be awesome, even though I personally doubt I would purchase one. I would love seeing someone driving one for sure though.