Is the rhombus ceiling in the hallway good for feng shui?

Feng Shui "likes to be roundabout and avoids straight forwards", the rhombus has sharp corners and the five elements are fire. Where the four corners are opposite, they will form evil spirits. It is taboo to use this kind of graphics in Feng Shui. Using a diamond-shaped ceiling on the top of the living room at home will cause more conflicts and fights in the family, and may also lead to cardiovascular and cerebrovascular diseases. So it is best not to use diamond-shaped ceilings.