I like Horus for the Recon Cruiser. Nice name. Hathor works quite well for the carrier, as well.
Kusari seems to use mythical creatures. Dragons, more specifically. Drake, Wyrm, Dragon. Chimera doesn't quite fit this, but it's still mythological. In terms of appearance, they are small, with large, fin-like wings, and have a curved, smooth, tapered chassis.
Bretonia prefers mounted warriors. Templar, Hussar, Crusader, Cavalier. As everyone says: fish. Their craft do have some resemblance to underwater creatures. Smooth, sleek, with small wings, although rather bulky when compared with Kusarinese ships.