4 x Round Fortified Towers
3 x Standard Castle Walls
1 x Castle Wall Gate
4 x Tower Wall Connector Sets
As you can see the various wall sections, gatehouses, towers and interior buildings are all looking very detailed indeed and each has an interior as well if you’re willing to paint up that too! You could have quite the skirmish game throughout its walls never mind a big siege outside and in.
The modular nature of it means that you could mix it throughout some other terrain of your choosing. I think it would be cool to put the smaller castle nestled within a pair of hills to give it some natural defence as well.