I'm not sure who came up with this color combination first but I LOVE the room designed by Kelly Wearstler for a little girl below as posted on the coco & kelly site. The playful pink punch carpet might be my favorite element in the room besides the sophisticated armoire.
For a similar look on a more affordable budget, the Eve set by Serena and Lily would be my second choice. The colors are so fresh and inviting. In reality I would stay away from a white upholstered headboard for a child's room, it looks beautiful but it is just bound to turn into a dirty mess in a few months.
Instead of the plain pink and white rug in the catalog photo above, I would choose the Romantic Lace Rosa Rug by The Rug Market for a more romantic look or the Jamaica Ticking Cotton Rag Rug by Dash & Albert if you want to add more colors into the design of the room, both pictured below.
And if by chance you were looking for a coordinating crib set, the Harper 3-Piece set also by Serena & Lily is now discontinued and is 50% off on their website. A pretty good deal if you ask me!