The inside of the hood is white with grey texture patches, could it be something to do with the UVs?
https://drive.google.com/file/d/1Sab_MrFRW4LXqK-99RUbDWkPXDEUiJhv/view?usp=drive_link
Hello Xen. It's hard to tell, it could be many thing. Perhaps it's an object intersecting it? Swap a texture with a different one, if it persist then you know it's the geometry. Move your UV islands around and see if the patches move. Turn nodes on and off and see if anything changes. If the thing goes away with your tests, then that way you can pin point where the error is.