When Nadia Watts decorates a powder room, she treats it like a jewel box. “Rooms often flow together, so design elements need to flow, too,” says the Denver-based interior designer. “But bathrooms are self-contained, so you can have a little more fun.” For this powder room in a Hilltop home, she started with the wallpaper—Schumacher’s delicate Lotus Garden pattern—then pulled its pink and lavender hues into the Casamance curtains and circular mirror custom-painted with Benjamin Moore’s Tropical Dusk. (Pro tip: Add a few accessories in rounded forms to soften the hard angles of windows and countertops.) The RH vanity was selected for its low-profile Carrara marble top (that just so happens to echo the gray tones of the room’s existing hexagonal marble floor tiles) and transparent legs that keep the petite space from looking cramped while adding a touch of sparkle. The result: a charming, glittering design that makes the most of every square inch.