The terrain pieces look good; I tried my hand at creating space terrain when I started playing Battleship Galaxies (yes, that's the closest I've come to space gaming), but they look like some Styrofoam balls smeared with paint in comparison. Great concept using real rocks for asteroids--did you drill holes for mounting? And then just a dry brush for effect after priming?
Camthalion, is model railroading part of your hobby activity? I sometimes wonder how much crossover between tabletop wargaming and model railroading there is; I attended a model railroading club the other month and some of the terrain I saw, particularly in one N-scale layout, looked incredible, but the model railroading guys seem to stick with trains and the wargamers I know stick with wargames. Interesting to see you working on sci-fi space models after admiring the pictures of your 20th century warships.
I had no idea there was a Red Dwarf model--awesome!