Same appearance for ES2 Vodyani and Civilization-BE "Supremacy" affinity? 6 years ago

Why Vodyani have such an enormous similarity with Civilization Beyond Earth (and Sid Meier's Starships) Supremacy affinity? Is there a single source of inspiration for Amplitude and Firaxis?

For example:

Vodyani:

Civilization Beyond Earth and Sid Meier's Starships, "Supremacy" military forces:

Also, "Supremacy" logo is very similar with religious (Vodyani's default) party in senate: