I know that LOM is being re-strtuctured, but it doesn't hurt to keep building, does it?
About this creation
At long last, I had arrived at the city of Centennial. It is also known as The Golden City due to its mass extraction of gold from nearby mines. The flag and swords on the entrance seem to reflect that.
Notes: I decided to add a raising gate-barrier-thing (what is it called?) at the entrance. It doesn't actually raise and lower; it's just there for aesthetic purposes.
Portcullis is the word you were looking for, though gate would also be correct. The overall look is good, you could do with a little more thickness on the walls to give it a proper city wall feel. Historically those walls were ten feet wide or more.