Too much tan or beige? how do I find a good palette and what are some rules with how many textures I should use in one building

Help and Feedback Art Design Support
1

I’m making a building in studio, I have a few previous versions and now until the newest version, But i’m struggling with the color palette and textures to use in game
palette in game
I feel like I have too many colors and textures so I have four different palettes currently, the closest is the original pallette but tried to remake because i thought there were too many colors and now It’s just becoming messy. help me out guys.