It is rare to put them together, such as side by side, up and down, or front and back, unless it is Buddhist calligraphy that can be hung behind the corresponding Buddha statue.
Buddha statues are generally placed in a clean, quiet location, not exposed to sunlight, and where people do not move around frequently. Flowers, fruits, and plain pastries should be placed in front of the Buddha, and meat and fish should not be eaten. The incense burner in front of the Buddha should be square.
Calligraphy works can be hung on the front wall, side wall, TV background wall according to the size, and can also be hung in the study or bedroom according to the content.