Are there any taboos in posting black paper on the living room wall?

Feng Shui does not advocate the use of bright red or black things in the home, because these two colors have a great impact on people's psychology. Black can make people think dark and prone to mental illness.

But according to your description, it seems that you only want to use black as the photo frame. As long as the entire wall is not completely black, there is no big problem in Feng Shui.

However, black photo frames are traditionally only used by dead people, which is fine in Feng Shui, but may make people feel uneasy in the traditional sense, so you should think twice.