Of course you have my permission.
Now as for the building, I do intend to turn it more into one structure, folding the different wings together and see how it turns out. Maybe it will turn into Duplo, though I hope not. And hopefully I'll manage to keep the polies down. Those things always kill me.
The cylinder was a big rotating gear of sorts that turns the dome around so yeah, it was half submerged. I think I'll ditch it though. Why have a rotating piece on the outside of the protective dome when it could do its job while safely hidden inside the thing?
And the sphere, that was a placeholder for the radar. Sorta like the big spheres on the Star Destroyers. I always thought those were radars of some sort. Well, gotta jet. Homework's calling.
Ps: thanks for the Moho Metal Maker. I based the dome on the Core Solar Plant, minus the sinking into the ground of the whole building. I stop at half. Never figured out the usage of the protective shells there though. Those things still blew up whenever a Flash got close.