It's a great hobby, but can be expensive these days .
Oh wow, that's amazing. My trains are 009, which is rather smaller, and occupy the whole of the small bedroom.
Welcome to the Forum. It's great to have new members. Pull up a cushion, or a chair if sitting on the floor isn't your thing, and make yourself at home.
That's a really great piece of work @Forlorn. It looks like you spent a lot of time on it and it shows. I like the background and the colours you used they look really good.