For an elegant living room, consider sophisticated and refined wall decor that complements the overall aesthetic. Here are some elegant wall decor ideas to elevate the style of your living space:

Large-scale Artwork: Choose a statement piece of art with an elegant subject, such as a classical painting, a framed mirror with an ornate frame, or a large-scale photograph with a timeless appeal.
Gold or Silver Framed Mirrors: Select mirrors with ornate gold or silver frames to add a touch of luxury and reflect light throughout the room.
Traditional Wall Paneling or Wainscoting: Install classic wall paneling or wainscoting to create an elegant and timeless backdrop for your living room.
Chic Wallpaper: Opt for wallpaper with subtle patterns, damask designs, or metallic accents to add depth and sophistication to your walls.
Crown Molding and Trim: Enhance the architectural details of your living room with crown molding, chair rails, and other elegant trim work.
Framed Art Arrangements: Create a gallery wall using a collection of framed art pieces that share a common theme, color scheme, or style for a curated and sophisticated look.
Crystal Wall Sconces: Install crystal wall sconces to add ambient lighting and a touch of glamour to your living room.
Classic Wall Clocks: Choose an elegant wall clock with a classic design, such as a large Roman numeral clock or a decorative antique-style timepiece.
Built-in Shelves with Display Lighting: Install built-in shelves with display lighting to showcase elegant decor items, such as glassware, books, or collectibles.
Tapestry or Embroidered Wall Hangings: Hang a tapestry or embroidered wall hanging with intricate patterns or scenes for a touch of old-world charm.
Antique or Vintage Mirrored Trays: Display elegant perfume bottles, candles, or other decorative items on antique or vintage mirrored trays.
Sculptural Wall Decor: Choose elegant sculptures or wall art with graceful lines and sophisticated forms to add a refined touch.
Gilded Picture Frames: Display artwork or photographs in gilded frames to add a touch of opulence.
Luxurious Textiles: Hang luxurious fabrics, such as silk or velvet curtains or tapestries, to add texture and elegance to your walls.
Muted Color Palette: Stick to a muted and sophisticated color palette, such as soft neutrals, creams, and pastels, to create a serene and elegant ambiance.
Accent Wall with Wood Paneling: Create an elegant focal point with a wood-paneled accent wall, adding warmth and texture to the room.
Floral Arrangements: Display fresh or high-quality faux floral arrangements in elegant vases or urns for a touch of timeless beauty.
Floating Glass Shelves: Install floating glass shelves to display delicate and elegant decor items without overwhelming the space.
Glamorous Wall Decals: Consider subtle and glamorous wall decals, such as metallic or mirrored decals, to add a touch of luxury without overpowering the room.
Dramatic Drapery and Curtains: Choose floor-length, opulent drapery with decorative hardware to frame your windows and add a sense of grandeur.

Remember to maintain a sense of balance and coherence in your wall decor choices to create a truly elegant and harmonious living room.