Hi folks !
Angus, actually I am working hard  
  to make these windows better.
As You noted, I might have to split the windows texture in order to bend correctly.
Perhaps one window, one texture...
The fuel scoops issue is on its way, too. I will split the front faces in order to shift back the scoops.
Crow, thanks for all these hints. I will do what my humble computer allows me to do.
8 lights might increase the release circle  
 
O.k., you got me. There is an ambient light source around, but its gonna be exchanged by a weak spotlight.
The second image is perhaps a bit scrambled by converting it with another graphics tool and removing the planet in the backdrop texture a bit uncleanly  
 
  
I will do another mouse pushing session today in the evening (if my kids let me).
Well, I use Realsoft3D 4.5 for modelling/ rendering and IGrafix PicturePublisher/CC2 for all the texturing. 
Best regards,
Mert