It actually doesn't look that dark on my monitor and I've got it set at factory brightness/contrast. But I'll take your word for it (as more than one of you have said the same) and try to brighten it up. It is supposed to be almost black on one side though, it being space and light casting such harsh shadow. Also the deckplan is intended to be the focus really with the image the background.

Anyway, I'll do some more work on it at some point and see what I can do. Thanks for the critique.