Great work!
It's very, very faithful to the original, and indeed, it looks as if you managed to shrink down the original lifesize prop.
I actually acquired the papercraft plans for a type 6 shuttle, for my ST RPG, which I intend to build with plasticard in 1/50, to go with my Modiphius ST miniatures. If my attempt will come out looking at least half as good as yours, I'll be elated...