Nice trip report. I'm glad to see the things at Legoland are improving since my last visit. I visited several years back out of the blue with my family, and half the rides were under maintenance at the time, and the food prices were silly expensive.
On a really weird side-note, I've probably touched 5-15% of the bricks they used to build those displays. My Mom's got a store where she sells Legos brick by brick, and she's gotten quite a few purchases from the guys who build those displays. Now I'm not actually sure those bricks went into the development of the displays, but just to the display builders personal collection and what-not. But I do like to think that those pieces are in there! And I'll give them credit, the people who build those displays are incredibly talented Lego sculptures. I don't even think most of those displays were made by people who work at Lego, but that Lego hired the fans that were well known for making great displays.