And I'm reminded more about Minas-Tirith (because of the Skyhaven itself - I believe that's what the thin castle on the background mountains called). And maybe about Ancient Greece (small village, the closest to the front of image; because of buildings' shape)... But anyway, nice one! Really, nice one. I wish I had a painter that good.
That tall building in the center resembles some kind of a lighthouse, and the town on the right side reminds me of that wooden walled kingdom in Th Lord of the Rings: The Two Towers (I do believe it was called Rohan).