Eh, that's funny to see your interpretations of my ships. For example, in my mind your cargo was supposed to be an AWACS. The sensor frigate on the other was pretty much a mobile large energy mount.
For the names, i originally wanted some weird names made of numbers, like with some cars brand (I-100, IC-300, etc...) but only for the frigates. The bigger ships would have generic Japanese names instead, as i imagined them as a whole different brand of ships compared to the frigates. That's why the carrier is quite different from the others, i wanted to get a late core-era style similar to the Apogee or the Odyssey. Experimental, high-tech frigates with bigger, semi-civilian support ships.
Alas, could never get it right, that's why it is unfinished, and alone. The "drone tender" was just a spriting experiment, never satisfied me either.
For the gold lines, there's no clear trick to get them. Lot of layers and filter stacking on photoshop, then some fiddling with opacity... Sorry if i can't be more clear, my photoshop files tends to be bloated with a lot of random, undecipherable stuffs (MesoTroniK can probably attest).
Anyway, i hope you'll manage to get something out of them. Maybe if you can get out a workable version of Kintsugi, it'll give me a good excuse to try to finish their goddamn sprites.