Dreadnought Class Heavy Cruiser with interior (bridge and hangar) - Star Wars - Fan Art

This Dreadnought Class Heavy Cruiser I made for the animation I'm working on is based on the Imperial Support Vessel concept art made for the Star Wars Rebels animation by Andre Kirk.
It was done in Blender 2.93 and rendered in Cycles, and it took me longer to fix a problem with the transparency of the character that appears on the bridge than to assemble all the scenes, for some reason after importing the model the transparencies turned black.