Let's face it. There is an art to collage walls and hanging art in an "artistic" way. Artfully Walls does the work for you!
My other wall find is an online wallpaper company called Holden & James. They specialize in designer wallpaper, as well as fabric, pillows and home decor, at a fraction of the suggested retail price. Their pricing structure is wholesale + 25% (with the exception of Madeline Weinrib items). This includes wallpapers like Clarence House Flowering Quince and Kelly Wearstler's Imperial Trellis (two of my favorites). Both of these wallpapers are normally hundreds of dollars per roll. And although the wholesale + price is not inexpensive, it will save you almost half the price. The Flowering Quince is $89/ roll (normally $150+/roll) and the Imperial Trellis is $145/roll (normally $230/roll).
Clarence House Flowering Quince
Imperial Trellis by Kelly Wearstler for Schumacher