Flamingo wallpaper Cole & Son or Harlequin
Walls: Barren Plain by Benjamin Moore // Pantone’s Rose Quartz (Accent Pink) Makes for the Prettiest Little Girl’s Room
How to Optimise Space in your Kids Room: Big Solutions for Small Spaces - Petit & Small
Idea is just for dream. Could use old door painted in duck egg blue for "headboard" with dream painted in Antoinette.