The key to making an assortment of accessories work together is color. A pom-pom pillow and blanket, a modern painting, graphic fabrics and even a Jeff Koons-inspired balloon dog bring playfulness and vibrance to this girl's bedroom. An analogous color palette of pink, purple and orange unite the different elements.

Whether decorating with flowers, black-and-white photos or candlesticks, layer the elements to create depth. Add in small lamps, mirrors or metallic items throughout the display for a hint of glam.

Yes, you can go bold when layering and mixing colors, textures and finishes. Just be sure to leave negative space so your vignette has a little breathing room. A saturated abstract painting, vibrant arrows, gilded candles and colorful prints combine seamlessly on this mantel because white framing and walls, as well as a clear vase, give pause to the arrangement.

Group similar items for maximum impact. Open shelving in this entryway is filled with souvenirs from the homeowners' travels. Each collection, from the woven baskets and pretty pottery to the glass orbs and decorative books, gets its own designated spot on the shelves. A cohesive look is achieved through the simple color scheme of turquoise, brown and black.