Will Chung Shan Man affect Feng Shui if it is placed indoors or in the bedroom?

Shadows don't affect feng shui, it depends on where you put them. Putting things like mountains in the north or northeast corner of the living room is beneficial to feng shui.

Because in Feng Shui, due north is the location of Xuanwu, and the ornaments of "Mountain" are placed here to have a backer. It is placed in the northeast corner because in the gossip, the northeast corner is a mountain, and the ornaments of "mountain" are placed here, which can be said from the perspective of geomantic omen.