A massive effort indeed, well done. Are there any planes to light up the interior?
The inside is huge, but I feel could benefit with a little dressing up, like perhaps some tiling in main walkways just to break up all those studs, but really that is just a tiny criticism, it really is hard to find fault in such a great build. The use of the smaller ties work well as it makes the scale one what more achievable.
Impressive, most impressive.