Grand Space Opera: Light Age / The prince

Image made for the Space Opera Artstation challenge.
Context : in a distant future, the human empire quickly realized that most of the habitable planets of the known space were already inhabited by various alien species. Instead of starting endless wars, the clergy iniated projet "iter" (the way").
The idea was to create diplomatical and peaceful relations with these species through a pragmatic use of the wedding.
#03 _ The prince
The alien prince and its praetorian guards enter the cathedral and head toward the altar.