I also tried windows in both white and yellow, but can't say I felt either lent much to the model. My feeling is that them being military ships, plus advances in video displays and camera's, there would be no requirement for the structural weakness of holes in the hull.
I appreciate the main purpose is to help break up the monotony of grey, grey and more grey, but hey ho. I like grey!
A real ongoing issue with these models it the fact paint will just not stick to them. I've washed them at least twice in hot water, but no dice. I think I may need to use a spray primer rather than a painted on black primer.
So the next step will be to strip the other model back, wash it down again, glue on the flight peg toppers, prime with a spray can and start working on a tidier version of the above paint job. This scheme should scale pretty easily and hopefully with practice my freehand lines will get neater. Again, any tips on doing that sort of thing would be gratefully received.