Oh man that early 2000's style build was RAD! I'd love to see that one be expanded on in the future, maybe as a short hour long game of it's own? Everything feels super smooth, the weapons are satisfying, the destruction is awesome and that gore is metal! Despite being only a room with a couple of enemies and weapons It really feels like a true loveletter to the games of that time period, Soldier of Fortune especially comes to mind!
I love the atmosphere of both the Pagan and Carnal Reborn builds too! The level of detail that you've added to all of these builds is insane and I must commend you for it!