You can still add the section of deck two up to the where the dark blue is on the dorsal saucer to the saucer map, use up some more room on the saucer texture that you have in spare.
I could tell by the way that you have spread out you textures. When you colored the second one from the original pix, I saw that you started getting messy on your texture usage and numbers.
My suggestion for the plasma and buzzard textures (I am guessing that you have made those aswell) is to make the plasma ones (Height x Width) 128x512 and the buzzard a square (say 256x256 or 512x512, you really don't need bigger - opens up possibilities on stuff ingame ya know ;) ).
All you really need is 3 textures for a ship, the rest is really optional. I would introduce a 4th one if I would be getting variantaholic on the ship (say, different pods, so I'd slap ALL the pods on the 4th texture), and/or do an ID map, where I'd slap all the sections of the ship that have ID's (name'n'shipreg), pennant'n'stripes, impulse exhaust, deflector dish, shuttlebay doors (so I can number them), it really all depends on your scope of thinking stuff through.
You could for example look at my Novi Sad ship pack on BCFiles, she's a fine example of fooling around with ships in this manner. Another (altho early attempt) is my Akyazi V2.0 pack.
Where some would use a whole boatload of textures on a ship pack of 20, I'd get away with about 7 or 8 excluding the extra ship ID maps (Luxor pack for example has 24 ships so far with only 7 texture maps used!) and it would still look a million times better.
