Personally, I like it. Like Eckz said, you have a lot of potential. Just don't spam JVS doors, you can make your own neat little garage and elevator doors with a bit of work. For an elevator door 6 spaces across, put 6 1x1x5's, and event them so the inside two disappear first and reappear last. The two on the edge should disappear last and reappear first. Garage doors go bottom to top, then reappear top to bottom. It looks much better, and like you put a lot more time into your work.