You can see in this picture the Zerg Capital Planet Char.The Lairs are well designed.

He is Protoss Prelete/Assasin Zeratul.The leader of the main Protoss survival forces.

The XelNaga Temple is used to merge twin crystals energies.Uraj and Khalis.The merged energy output will be very destructive.

A Baneling from a closer viewpoint.These creatures are mutated from Zerglings and can be very dangerous against high tech vehicles.