One is to paint the living room beautifully, so that guests can have a feeling of nature when they come, or the host prefers the feeling of nature.
Second, it may be for the coordination of living room space and decoration with other living room furniture or furniture.
Third, the tree has a meaning, meaning prosperity and happiness.
Fourth, look at feng shui, but feng shui generally looks at what the homeowner lacks in five elements, and then makes up for it. This should be understood by the owner himself.
I don't know if the above answer is satisfactory, please accept it, thank you ~ ~ ~