Nice to see the whole thing, thus far!
Looking great!
And I think the 500 vs 400 thing is working pretty well here.
I don't find it's noticeable at all, except maybe with the smaller aircraft (RJ and small buses). They do seem a tad big when compared to the multi-level terminal building.
But the heavies in your international section fit in ...bang on!
A good selection of visitors, too.
I love looking at creations like these. I'm glad there are people like you - and the others here - with the skill, patience, inclination, time and money - to make them for us. Thanks!
Nice work. Keep going!