I'm happy for you. I would also be interested in the hallway (ground floor and upper floor). Looking back, would you have done anything differently?
That's not so easy to answer because now we're entering the area of taste and preference.
First, the fact that it's so wide and spacious is exactly how it should be and it works perfectly for us with two small children.
In general, my wife is thrilled and wanted it exactly like that: open and visible. I might possibly shift the entrance slightly away from the entire living area or do something so that you don't always have to look at the front door from the living area, or vice versa, so that when I enter, I don't immediately look into the living area. Although you don't look directly inside—if someone is sitting at the dining table or on the sofa in the living room and a person is standing at the entrance, they obviously don't see that. It was intentionally designed so that you can look through, there is a sightline, but there is still privacy.
My wife would do it exactly the same way again, I might change a small detail and separate the entrance area a little from the living areas, arranged offset.
But that's life. Happy wife, happy life.
Functionally, however, it is perfect for us. There is exactly the space we need to get the kids ready when they have to leave in the morning, when all of us have to leave, and when we come home to properly get undressed, store shoes, and similar things. No one has to squeeze, and everything has its place.
