[Heroes V] Shalassa Castle

I can't really picture a city, and I'm no architect.

The underwater city of the Gungans from Star Wars Episode I can serve as an example, as we could also add elements of Atlantis from Greek mythology to create an atmosphere. We could incorporate Hellenistic elements and make the faction playable only on water maps.

Added after 10 hours and 50 minutes
It might be difficult to balance, but Shalassa is the wisest of the elemental dragons, and perhaps her people are the most religious in the world. Therefore, we could leave the race without 7th-level creatures and, instead, have an avatar of Shalassa appear at the beginning of the battle, corresponding to the hero's power.