How many panels is enough? Always one more than you have!

Progress! I burned through another sheet of plasticard (okay, two) but made some exterior panels, as well as some small vertical panels for the ends of the corridors..

This gave me the level of interior detail I was hoping for, without protruding too much from the walls to make model movement difficult (of course, the actual rooms themselves is another story). I painted them up and fitted them in place, then followed Tom Schadle's colour scheme for the Warsenal Cosmica terrain - more or less - since the base colour of orange and white is what Antenocitis use on their own pre-coloured Forward Base set.

..and here it is, finally finished!