There are different types of design and decorations for dining room walls which you can opt for and some are as follows.
Choose some types of wall calligraphy that is related to the theme of the dining room such as a picture of coffee with smokes arises above usually means breakfast time or winter time, if you simply pick a theme with one plate, one fork and one spoon it will refer to meal or food. There is no harm in using 3d wallpapers in the dining room as long as they are going well with the theme of the room.
Some people are taking the decorations for dining room walls to the next level by adding graphics and pictures of delicious foods that invoke appetite or help with the dinner activities. Check some ideas to feel impress.