The landlord posted a picture of cats and dogs on the wall behind the sofa in the living room, which is very cute, but I think the picture of cats and dogs is more suitable for the baby's room and not suitable for the living room. The living room is suitable for hanging auspicious paintings, such as rich and auspicious peony paintings, elegant classical poetry and calligraphy works, birthday pictures wishing health and longevity, longevity birds, pine cranes and so on. China people have a strong landscape plot since ancient times, and hanging paintings in the living room is also suitable for hanging some landscape paintings, and antique modern landscapes can be used. From the perspective of feng shui, it is advisable to use aboveboard content and avoid towering things. You can hang Xiushan on the sofa wall in the living room and draw wealth by holding water around Tang Ming, such as cornucopia landscape painting.
These are my personal suggestions. You can choose a suitable sofa background painting according to your own decoration style and preferences, and the one that best reflects your own taste is the best.