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Select the plates or china you want to display. They can be funky, eclectic, or come in different colors and sizes. Or you can pick plates or china that are all the same size, style, or color. Decide if you want to hang them symmetrically or create a unique, asymmetrical design.  If you don't to hang the plates, you could hang a plate rack to set them on or prop them against a sideboard or hutch. To create a fun gallery wall, intersperse hanging plates with artwork. to enlarge the space. If you want to make a small dining room appear larger, hang a large mirror on a wall. Try to hang it on the wall that's opposite from a window so the mirror will reflect more light. You could also hang lots of smaller mirrors in different sizes to create an interesting effect.  Choose mirrors with frames that match the style of the room. For example, if you're decorating an elegant dining room, choose a mirror with a thick silver or gold frame. Or if you're decorating a vintage kitchen, look for a mirror at your local antique store. A great place to put a mirror is above a buffet table. For an earthy or dramatic look, arrange branches above the windows or hang plants from the ceiling. Decide if you want plants that trail as they grow or if you'd like to hang small, potted plants on wall-mounted vases. Or, use high-quality faux plants and flowers.  Plants can also introduce a pop of color into the dining room. If you want to use branches, leave them natural or paint them to stand out against your wall. For low-maintenance plants, suspend succulents from small containers or place them on shelves. Put large arrangements of flowers on your sideboard or in the center of your dining table. . You can easily choose or make paintings that reflect the style of your dining room. Mix or match painting styles to create a gallery-type wall. Play around with grouping the paintings until you find an arrangement that you like. Or choose one large painting to be the focal point of a wall. You can also hang photographs instead of paintings or hang a mixture of paintings and photos. For example, hang black and white photographs with colorful paintings. If you have a window in your dining room, don't forget to hang curtains, blinds, or drapes. These will soften the space and complete the walls. For a casual dining room or breakfast nook, consider installing Roman shades that can easily be raised and lowered. Use rich, billowy fabrics for elegant dining room windows or install interior shutters, for a rustic look. Consider the lighting in the room when you purchase window treatments. For example, if you want to let in more light, stick with sheer fabrics.

Summary:
Arrange decorative plates. Hang mirrors Place plants or branches along the walls. Hang paintings Select window treatments.