Very effective, and like most great ideas, very simple too! The landing pad and the two storage/pumping areas fit together very naturally, we can just look at the scene and think 'of course, the ships land here, they take on supplies, they leave their spent fuel containers and they blast off again' or whatever - it's clear enough what's going on from the clues and that helps to tell a story.
And it's also nice to see some 40k terrain that isn't just a bunker or a ruined church! I'm sure people in the 41st millennium must do things other than fight and pray, great to see something that might make you think people have a job (cleaning the decks, moving the fuel cannisters, checking the levels in big tanks that *must be* below the pumps... you see? I'm even inventing the storage tanks - that's what a bit of thinking about how your terrain works does, allows people to fill in the unseen details with their imagination).
Very very nice work sir!