Ontario mom, I am posting pictures of our "blue room" that isn't actually painted blue. I think that the blue of Scandinavian Christmas plates looks best on a color other than blue. The white Holly Kay linked to, or something similar, would be beautiful for pine furniture and floors. This is a sort of montage of photos of the room. I have about 100 plates and cannot display them all, but they were the starting point for the room. It was already painted this gold color. I used other blue and white pieces i already owned (urns, vases, Foo dogs, etc) in this room as well. We purchase the oil of children on the beach and I framed it myself in the plein air style. Sorry for the horrible iPhone photos....this shows the plates above the headboard. We used DS2's childhood furniture (armoire and dark pine single size sleigh bed ). We recently put rustic white oak floors in the room and I added this blue and taupe-y gray rug: Closer of plates above headboard (these are Norwegian) and other blue and white stuff on shelf in bed alcove: In the corner is a display thing bought at Ballard Back Room in Atlanta (their discount place). They called it a bookcase but it is perfect for displaying plates in a corner! This is an interesting side table my mother gave me for my birthday about seven years ago. It is a mosaic top made up of broken pieces of blue and white china. On it is a lamp that was in my childhood room...a little too "good" for the rest of the room, but I wanted to use what I had. The bedding is a discontinued Ralph Lauren pattern I found on ebay. They incorporate shades of navy, royal and light blue, which is a perfect foil for the plates. I use the white matellasse cover on the bed with the comforter folded up at the foot. Hope these photos help you envision a blue and white room :-)

To answer your direct questions: Put the darker color behind the bed headboard and then decide if you want one accent wall (usually a lot of contrast) or if you want to have two walls each color. The Santorini Blue is not baby blue, but I would put a color swatch in your room to see how it looks in different light if you decide to go in that direction. Glass Slipper is more ice blue than baby blue. I LOVE the Santorini blue, but thought it was too dark to have on all four walls. Your bedding is very neutral and very pretty. When I look at it I think "irredesence" or opal. Everyone does this differently, but I tend to decide what I want a room to FEEL like and then go from there. For our bedroom I thought "sleeping in the clouds". Hence, I have blues, whites, creams and beige. For our bathroom I wanted "beach spa". I also suggest you look through the bathroom pictures on the bathroom forum. I found several inspirational rooms that worked with the tile and cabinets we had. I think one of the reasons you are struggling is that you are working with "what matches" instead of what look do I love. Love something, make it work in your room. Having said that, I think your tile would work well with blues, tans or many of the greiges. Whatever you decide, you are likely going to need an accent color since your bedding has wonderful texture, but only one color. Again, look at the bathroom forums pictures and here in gallary under "bathrooms". Which rooms catch your breadth or you say to yourself, "I want that feeling". Good luck!

Thanks so much, Tibbrix and Jterrilynn. I feel like somehow I've managed to totally hijack Ljane's thread (sorry, Ljane!) while we all sit here in eager anticipation awaiting her Vintage Charm and assorted other splotching. I'm eager to hear how those experiments are going! If history is a guide, you will see 100 posts from me in the future about paint color. Gawds, I am really hoping I can avoid that tiresome bit of board spam...

Calidesign: good point about warmth from wood floors and bedding. Thank you. ljangell44: I actually tried to pick up a paint chip for agreeable gray (for another room) at SW when I was there, they were all out...popular color!! On my to do list to get back there. Interesting, I had never considered gray for the room, but I think it may compliment the yellow and not close in the room...will check it out. Thanks! BlueberryBundtcake: Tired of it and want a change. Funny, I always loved the warmth of it, but now after some renovations over the years all of the stain on various doors and windows do not match and it bugs me. Understood that it will be difficult to change!