First try at making a model/static mesh in UE4 only (cathedral) - feedback welcome

So this is my first time sharing and I am fairly new to UE4 but I figured I would like some feedback and constructive criticism on a cathedral I made in Unreal Engine. I’ve not got the time to learn Blender or Maya given I have a fulltime day job which is not models or animations, so using UE4 to make these is sufficient at the moment.

Happy to receive constructive feedback.