Look at the wind and water. Is this background wall shaped like an arch?

Arches are generally used in more solemn places in buildings, and the background wall of the room is as relaxed as possible.

Look at your picture, mainly in European style. There are many curved arches, the key is that you like them.

Feng Shui emphasizes "drinking form and calling image". If you think the arch looks like something, try to avoid it. Because it is not physical, but it will have a greater negative impact psychologically.