Big doors would be great, but TLC will never make them. That would be one heck of a system model to have doors like that. Unless of course they end up doing a modular UCS castle line. How sweet would that be...
Back on topic, I like how you incorporated the tan pillars into the gate like that. I have a bunch of the pillars in tan and black and have been scratching my head trying to figure out what I will build with them. I like the market too, personally I will be hiding the printing on my HP panels. Brasso is a bit of work when you have a lot of panels to clean. The stickers look great as well.
After a long absence, I have returned. I can't wait to start building again.